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Table 1 Search strategy

From: Association between cannabis use and treatment outcomes in patients receiving methadone maintenance treatment: a systematic review protocol

Database

Search strategy

MEDLINE (n = 420)

1. exp Opiate substitution therapy/

2. Methadone/

3. Methadone.mp.

4. MMT.mp.

5. Cannabis/

6. Marijuana Abuse/

7. Marijuana Smoking/

8. Medical Marijuana/

9. Cannabis.mp. or marijuana*.mp.

10. THC.mp. or hash*.mp. or ganja.mp. or hemp.mp. or bhang*.mp.

11. 1 or 2 or 3 or 4

12. 5 or 6 or 7 or 8 or 9 or 10

13. 11 an 12

14. Limit 13 to humans

EMBASE (n = 1761)

1. exp opiate substitution treatment/

2. exp methadone treatment/

3. exp methadone/

4. Methadone.mp.

5. MMT.mp.

6. exp cannabis/

7. exp “cannabis use”/

8. exp cannabis addiction/

9. exp cannabis smoking/

10. exp medical cannabis/

11. Cannabis.mp. or marijuana*.mp.

12. THC.mp. or hash*.mp. or ganja.mp. or hemp.mp. or bhang*.mp.

13. 1 or 2 or 3 or 4 or 5

14. 6 or 7 or 8 or 9 or 10 or 11 or 12

15. 13 and 14

16. Limit 15 to humans

PsycINFO (n = 194)

1. exp methadone maintenance/

2. methadone.mp.

3. MMT.mp.

4. exp cannabis/

5. exp marijuana usage/

6. cannabis.mp. or marijuana*.mp.

7. THC.mp. or hash*.mp. or ganja.mp. or hemp.mp. or bhang*.mp.

8. 1 or 2 or 3

9. 4 or 5 or 6 or 7

10. 8 and 9

11. Limit 10 to humans

CINAHL (n = 50)

1. (MH “Methadone”)

2. “Methadone”

3. “MMT”

4. (MH “Cannabis”)

5. (MH “Medical Marijuana”)

6. “marijuana” or “cannabis”

7. “THC” or “hash*” or “ganja” or “hemp*” or “bhang*”

8. 1 or 2 or 3

9. 4 or 5 or 6

10. 7 and 8 (limiters – human)