| 1 | substance | 5,075 |
| 2 | condom | 2,031 |
| 3 | pacifier | 133 |
| 4 | polydrug | 68 |
| 5 | polysubstance | 29 |
| 6 | sunbed | 29 |
| 7 | dual-method | 27 |
| 8 | bednet | 17 |
| 9 | alcohol/drug | 15 |
| 10 | cuds | 15 |
| 11 | abuse/harmful | 14 |
| 12 | mpa/e2c | 12 |
| 13 | drug/alcohol | 11 |
| 14 | earplug | 11 |
| 15 | lanca | 11 |
| 16 | olg | 11 |
| 17 | betel-quid | 8 |
| 18 | osn | 8 |
| 19 | otc-medication | 8 |
| 20 | precoital | 8 |
| 21 | tcm/cam | 8 |
| 22 | alcohol/substance | 7 |
| 23 | in-law | 7 |
| 24 | 'previous | 6 |
| 25 | pain-medication | 6 |
| 26 | polytobacco | 6 |
| 27 | hard-drug | 5 |
| 28 | mdma/ecstasy | 5 |
| 29 | rphl | 5 |
| 30 | asa/nsaid | 4 |
| 31 | grou | 4 |
| 32 | interview-substance | 4 |
| 33 | lts61k/der | 4 |
| 34 | seat-belt | 4 |
| 35 | weight-tracker | 4 |
| 36 | anti-rpru | 3 |
| 37 | coffee/tea | 3 |
| 38 | ctm-aa | 3 |
| 39 | diseases/illnesses | 3 |
| 40 | meth/amphetamine | 3 |
| 41 | miticide | 3 |
| 42 | non-substance | 3 |
| 43 | post-chemotherapeutic | 3 |
| 44 | post-cocaine | 3 |
| 45 | tawa | 3 |
| 46 | temazcal | 3 |
| 47 | verbal/emotional | 3 |
| 48 | 'substance | 2 |
| 49 | .marijuana | 2 |
| 50 | a=√2xa | 2 |
| 51 | alba® | 2 |
| 52 | anti-ribosomal | 2 |
| 53 | babies.the | 2 |
| 54 | cannabis/marijuana | 2 |
| 55 | costs/resource | 2 |
| 56 | csa3 | 2 |
| 57 | droperidolum | 2 |
| 58 | health/substance | 2 |
| 59 | illicit-drug | 2 |
| 60 | iud/ius | 2 |
| 61 | little-cigar | 2 |
| 62 | never/rare | 2 |
| 63 | no-lock | 2 |
| 64 | pain/analgesic | 2 |
| 65 | pharmaceutical-aid | 2 |
| 66 | poor/no | 2 |
| 67 | prevention-services | 2 |
| 68 | smoking-substance | 2 |
| 69 | 'polydrug | 1 |
| 70 | -157. | 1 |
| 71 | .condom | 1 |
| 72 | /ftm | 1 |
| 73 | 13.296 | 1 |
| 74 | 25-cycle | 1 |
| 75 | abusive/harmful | 1 |
| 76 | ace-i/arb/statin | 1 |
| 77 | agents/therapeutic | 1 |
| 78 | alcohol/cannabis | 1 |
| 79 | alcohol/tobacco | 1 |
| 80 | aminopyridine | 1 |
| 81 | analgaesia | 1 |
| 82 | analgesic/sedation | 1 |
| 83 | auto-therapeutic | 1 |
| 84 | bike-helmet | 1 |
| 85 | birth-concerns | 1 |
| 86 | c=2xa | 1 |
| 87 | can/week | 1 |
| 88 | candirectly | 1 |
| 89 | cap-only | 1 |
| 90 | cm1-cm3 | 1 |
| 91 | correction/cosmetic | 1 |
| 92 | cr/er | 1 |
| 93 | depression/substance | 1 |
| 94 | dialysis-catheter | 1 |
| 95 | diaphragm-spermicide | 1 |
| 96 | diaphragm/spermicide | 1 |
| 97 | dmard-ever | 1 |
| 98 | dmard/mtx | 1 |
| 99 | emotional/domestic | 1 |
| 100 | ever/never | 1 |
| 101 | extra-medical | 1 |
| 102 | frek | 1 |
| 103 | g-csf/epo | 1 |
| 104 | glucocorticoids/therapeutic | 1 |
| 105 | group.marijuana | 1 |
| 106 | health-appropriate | 1 |
| 107 | heavy/regular | 1 |
| 108 | high-quantity | 1 |
| 109 | hospitalization/dialysis | 1 |
| 110 | hydrocodone/apap | 1 |
| 111 | intr | 1 |
| 112 | l-neurons | 1 |
| 113 | laxative/antacid | 1 |
| 114 | laxative/diuretic | 1 |
| 115 | learner's-permit | 1 |
| 116 | lemon/lime | 1 |
| 117 | lexative | 1 |
| 118 | life.with | 1 |
| 119 | low-frequency/prn | 1 |
| 120 | lower-airway | 1 |
| 121 | medication/analgesia | 1 |
| 122 | medication/herbal | 1 |
| 123 | misuse-related | 1 |
| 124 | morbidity.robotic | 1 |
| 125 | mph-associated | 1 |
| 126 | multisubstance | 1 |
| 127 | non-3p- | 1 |
| 128 | noncontraindicated | 1 |
| 129 | nondermatologic | 1 |
| 130 | nonmacrolide | 1 |
| 131 | nonmindful | 1 |
| 132 | or=0.065 | 1 |
| 133 | overweight-bottle | 1 |
| 134 | oxycodone-acetaminophen | 1 |
| 135 | parasol | 1 |
| 136 | past/current | 1 |
| 137 | photosynthetic-nitrogen | 1 |
| 138 | pneumonia.the | 1 |
| 139 | post-mptp | 1 |
| 140 | postmarketed | 1 |
| 141 | pre-tia | 1 |
| 142 | precold | 1 |
| 143 | prescription-drug | 1 |
| 144 | prevention-service | 1 |
| 145 | psro | 1 |
| 146 | respiratory-depressed | 1 |
| 147 | riskful | 1 |
| 148 | rut-daily | 1 |
| 149 | student-initiated | 1 |
| 150 | substance- | 1 |
| 151 | substance/nicotine | 1 |
| 152 | substitutional/additional | 1 |
| 153 | sulfonlyurea | 1 |
| 154 | textism | 1 |
| 155 | tobacco/alcohol/drug | 1 |
| 156 | trials.cas | 1 |
| 157 | trufflers | 1 |
| 158 | use/cannabis | 1 |
| 159 | zinc/ors | 1 |
| 160 | ±ace-i | 1 |
| 161 | δtgf-β1 | 1 |
| 162 | “harmful | 1 |
| 1 | 'polydrug | 1 |
| 2 | 'previous | 6 |
| 3 | 'substance | 2 |
| 4 | -157. | 1 |
| 5 | .condom | 1 |
| 6 | .marijuana | 2 |
| 7 | /ftm | 1 |
| 8 | 13.296 | 1 |
| 9 | 25-cycle | 1 |
| 10 | a=√2xa | 2 |
| 11 | abuse/harmful | 14 |
| 12 | abusive/harmful | 1 |
| 13 | ace-i/arb/statin | 1 |
| 14 | agents/therapeutic | 1 |
| 15 | alba® | 2 |
| 16 | alcohol/cannabis | 1 |
| 17 | alcohol/drug | 15 |
| 18 | alcohol/substance | 7 |
| 19 | alcohol/tobacco | 1 |
| 20 | aminopyridine | 1 |
| 21 | analgaesia | 1 |
| 22 | analgesic/sedation | 1 |
| 23 | anti-ribosomal | 2 |
| 24 | anti-rpru | 3 |
| 25 | asa/nsaid | 4 |
| 26 | auto-therapeutic | 1 |
| 27 | babies.the | 2 |
| 28 | bednet | 17 |
| 29 | betel-quid | 8 |
| 30 | bike-helmet | 1 |
| 31 | birth-concerns | 1 |
| 32 | c=2xa | 1 |
| 33 | can/week | 1 |
| 34 | candirectly | 1 |
| 35 | cannabis/marijuana | 2 |
| 36 | cap-only | 1 |
| 37 | cm1-cm3 | 1 |
| 38 | coffee/tea | 3 |
| 39 | condom | 2,031 |
| 40 | correction/cosmetic | 1 |
| 41 | costs/resource | 2 |
| 42 | cr/er | 1 |
| 43 | csa3 | 2 |
| 44 | ctm-aa | 3 |
| 45 | cuds | 15 |
| 46 | depression/substance | 1 |
| 47 | dialysis-catheter | 1 |
| 48 | diaphragm-spermicide | 1 |
| 49 | diaphragm/spermicide | 1 |
| 50 | diseases/illnesses | 3 |
| 51 | dmard-ever | 1 |
| 52 | dmard/mtx | 1 |
| 53 | droperidolum | 2 |
| 54 | drug/alcohol | 11 |
| 55 | dual-method | 27 |
| 56 | earplug | 11 |
| 57 | emotional/domestic | 1 |
| 58 | ever/never | 1 |
| 59 | extra-medical | 1 |
| 60 | frek | 1 |
| 61 | g-csf/epo | 1 |
| 62 | glucocorticoids/therapeutic | 1 |
| 63 | grou | 4 |
| 64 | group.marijuana | 1 |
| 65 | hard-drug | 5 |
| 66 | health-appropriate | 1 |
| 67 | health/substance | 2 |
| 68 | heavy/regular | 1 |
| 69 | high-quantity | 1 |
| 70 | hospitalization/dialysis | 1 |
| 71 | hydrocodone/apap | 1 |
| 72 | illicit-drug | 2 |
| 73 | in-law | 7 |
| 74 | interview-substance | 4 |
| 75 | intr | 1 |
| 76 | iud/ius | 2 |
| 77 | l-neurons | 1 |
| 78 | lanca | 11 |
| 79 | laxative/antacid | 1 |
| 80 | laxative/diuretic | 1 |
| 81 | learner's-permit | 1 |
| 82 | lemon/lime | 1 |
| 83 | lexative | 1 |
| 84 | life.with | 1 |
| 85 | little-cigar | 2 |
| 86 | low-frequency/prn | 1 |
| 87 | lower-airway | 1 |
| 88 | lts61k/der | 4 |
| 89 | mdma/ecstasy | 5 |
| 90 | medication/analgesia | 1 |
| 91 | medication/herbal | 1 |
| 92 | meth/amphetamine | 3 |
| 93 | misuse-related | 1 |
| 94 | miticide | 3 |
| 95 | morbidity.robotic | 1 |
| 96 | mpa/e2c | 12 |
| 97 | mph-associated | 1 |
| 98 | multisubstance | 1 |
| 99 | never/rare | 2 |
| 100 | no-lock | 2 |
| 101 | non-3p- | 1 |
| 102 | non-substance | 3 |
| 103 | noncontraindicated | 1 |
| 104 | nondermatologic | 1 |
| 105 | nonmacrolide | 1 |
| 106 | nonmindful | 1 |
| 107 | olg | 11 |
| 108 | or=0.065 | 1 |
| 109 | osn | 8 |
| 110 | otc-medication | 8 |
| 111 | overweight-bottle | 1 |
| 112 | oxycodone-acetaminophen | 1 |
| 113 | pacifier | 133 |
| 114 | pain-medication | 6 |
| 115 | pain/analgesic | 2 |
| 116 | parasol | 1 |
| 117 | past/current | 1 |
| 118 | pharmaceutical-aid | 2 |
| 119 | photosynthetic-nitrogen | 1 |
| 120 | pneumonia.the | 1 |
| 121 | polydrug | 68 |
| 122 | polysubstance | 29 |
| 123 | polytobacco | 6 |
| 124 | poor/no | 2 |
| 125 | post-chemotherapeutic | 3 |
| 126 | post-cocaine | 3 |
| 127 | post-mptp | 1 |
| 128 | postmarketed | 1 |
| 129 | pre-tia | 1 |
| 130 | precoital | 8 |
| 131 | precold | 1 |
| 132 | prescription-drug | 1 |
| 133 | prevention-service | 1 |
| 134 | prevention-services | 2 |
| 135 | psro | 1 |
| 136 | respiratory-depressed | 1 |
| 137 | riskful | 1 |
| 138 | rphl | 5 |
| 139 | rut-daily | 1 |
| 140 | seat-belt | 4 |
| 141 | smoking-substance | 2 |
| 142 | student-initiated | 1 |
| 143 | substance | 5,075 |
| 144 | substance- | 1 |
| 145 | substance/nicotine | 1 |
| 146 | substitutional/additional | 1 |
| 147 | sulfonlyurea | 1 |
| 148 | sunbed | 29 |
| 149 | tawa | 3 |
| 150 | tcm/cam | 8 |
| 151 | temazcal | 3 |
| 152 | textism | 1 |
| 153 | tobacco/alcohol/drug | 1 |
| 154 | trials.cas | 1 |
| 155 | trufflers | 1 |
| 156 | use/cannabis | 1 |
| 157 | verbal/emotional | 3 |
| 158 | weight-tracker | 4 |
| 159 | zinc/ors | 1 |
| 160 | ±ace-i | 1 |
| 161 | δtgf-β1 | 1 |
| 162 | “harmful | 1 |
| 1 | substance- | 1 |
| 2 | non-3p- | 1 |
| 3 | -157. | 1 |
| 4 | δtgf-β1 | 1 |
| 5 | csa3 | 2 |
| 6 | cm1-cm3 | 1 |
| 7 | or=0.065 | 1 |
| 8 | 13.296 | 1 |
| 9 | ctm-aa | 3 |
| 10 | lanca | 11 |
| 11 | sulfonlyurea | 1 |
| 12 | coffee/tea | 3 |
| 13 | analgaesia | 1 |
| 14 | medication/analgesia | 1 |
| 15 | pre-tia | 1 |
| 16 | .marijuana | 2 |
| 17 | group.marijuana | 1 |
| 18 | cannabis/marijuana | 2 |
| 19 | tawa | 3 |
| 20 | c=2xa | 1 |
| 21 | a=√2xa | 2 |
| 22 | mpa/e2c | 12 |
| 23 | nondermatologic | 1 |
| 24 | pain/analgesic | 2 |
| 25 | correction/cosmetic | 1 |
| 26 | laxative/diuretic | 1 |
| 27 | morbidity.robotic | 1 |
| 28 | emotional/domestic | 1 |
| 29 | auto-therapeutic | 1 |
| 30 | glucocorticoids/therapeutic | 1 |
| 31 | agents/therapeutic | 1 |
| 32 | post-chemotherapeutic | 3 |
| 33 | sunbed | 29 |
| 34 | respiratory-depressed | 1 |
| 35 | noncontraindicated | 1 |
| 36 | mph-associated | 1 |
| 37 | student-initiated | 1 |
| 38 | misuse-related | 1 |
| 39 | postmarketed | 1 |
| 40 | pharmaceutical-aid | 2 |
| 41 | asa/nsaid | 4 |
| 42 | laxative/antacid | 1 |
| 43 | betel-quid | 8 |
| 44 | precold | 1 |
| 45 | dual-method | 27 |
| 46 | prevention-service | 1 |
| 47 | substance | 5,075 |
| 48 | 'substance | 2 |
| 49 | smoking-substance | 2 |
| 50 | non-substance | 3 |
| 51 | interview-substance | 4 |
| 52 | health/substance | 2 |
| 53 | alcohol/substance | 7 |
| 54 | depression/substance | 1 |
| 55 | multisubstance | 1 |
| 56 | polysubstance | 29 |
| 57 | costs/resource | 2 |
| 58 | diaphragm-spermicide | 1 |
| 59 | diaphragm/spermicide | 1 |
| 60 | miticide | 3 |
| 61 | nonmacrolide | 1 |
| 62 | pneumonia.the | 1 |
| 63 | babies.the | 2 |
| 64 | 25-cycle | 1 |
| 65 | overweight-bottle | 1 |
| 66 | lemon/lime | 1 |
| 67 | post-cocaine | 3 |
| 68 | aminopyridine | 1 |
| 69 | meth/amphetamine | 3 |
| 70 | substance/nicotine | 1 |
| 71 | never/rare | 2 |
| 72 | health-appropriate | 1 |
| 73 | lexative | 1 |
| 74 | olg | 11 |
| 75 | earplug | 11 |
| 76 | hard-drug | 5 |
| 77 | prescription-drug | 1 |
| 78 | illicit-drug | 2 |
| 79 | alcohol/drug | 15 |
| 80 | tobacco/alcohol/drug | 1 |
| 81 | polydrug | 68 |
| 82 | 'polydrug | 1 |
| 83 | life.with | 1 |
| 84 | ±ace-i | 1 |
| 85 | no-lock | 2 |
| 86 | can/week | 1 |
| 87 | frek | 1 |
| 88 | medication/herbal | 1 |
| 89 | extra-medical | 1 |
| 90 | temazcal | 3 |
| 91 | anti-ribosomal | 2 |
| 92 | substitutional/additional | 1 |
| 93 | verbal/emotional | 3 |
| 94 | precoital | 8 |
| 95 | rphl | 5 |
| 96 | drug/alcohol | 11 |
| 97 | parasol | 1 |
| 98 | nonmindful | 1 |
| 99 | riskful | 1 |
| 100 | abuse/harmful | 14 |
| 101 | abusive/harmful | 1 |
| 102 | “harmful | 1 |
| 103 | tcm/cam | 8 |
| 104 | condom | 2,031 |
| 105 | .condom | 1 |
| 106 | textism | 1 |
| 107 | /ftm | 1 |
| 108 | droperidolum | 2 |
| 109 | photosynthetic-nitrogen | 1 |
| 110 | oxycodone-acetaminophen | 1 |
| 111 | ace-i/arb/statin | 1 |
| 112 | otc-medication | 8 |
| 113 | pain-medication | 6 |
| 114 | analgesic/sedation | 1 |
| 115 | low-frequency/prn | 1 |
| 116 | osn | 8 |
| 117 | alcohol/tobacco | 1 |
| 118 | polytobacco | 6 |
| 119 | poor/no | 2 |
| 120 | g-csf/epo | 1 |
| 121 | psro | 1 |
| 122 | hydrocodone/apap | 1 |
| 123 | post-mptp | 1 |
| 124 | little-cigar | 2 |
| 125 | heavy/regular | 1 |
| 126 | cr/er | 1 |
| 127 | lts61k/der | 4 |
| 128 | pacifier | 133 |
| 129 | weight-tracker | 4 |
| 130 | dialysis-catheter | 1 |
| 131 | dmard-ever | 1 |
| 132 | ever/never | 1 |
| 133 | intr | 1 |
| 134 | trials.cas | 1 |
| 135 | cuds | 15 |
| 136 | prevention-services | 2 |
| 137 | diseases/illnesses | 3 |
| 138 | use/cannabis | 1 |
| 139 | alcohol/cannabis | 1 |
| 140 | hospitalization/dialysis | 1 |
| 141 | l-neurons | 1 |
| 142 | birth-concerns | 1 |
| 143 | trufflers | 1 |
| 144 | zinc/ors | 1 |
| 145 | iud/ius | 2 |
| 146 | 'previous | 6 |
| 147 | bike-helmet | 1 |
| 148 | bednet | 17 |
| 149 | learner's-permit | 1 |
| 150 | seat-belt | 4 |
| 151 | past/current | 1 |
| 152 | grou | 4 |
| 153 | anti-rpru | 3 |
| 154 | in-law | 7 |
| 155 | dmard/mtx | 1 |
| 156 | lower-airway | 1 |
| 157 | rut-daily | 1 |
| 158 | cap-only | 1 |
| 159 | candirectly | 1 |
| 160 | mdma/ecstasy | 5 |
| 161 | high-quantity | 1 |
| 162 | alba® | 2 |