2. Summary of developed methodological filters for MEDLINE, Embase, and combined MEDLINE/Embase, respectively.
Study ID | Methodological filters | |||
Filter 1 | Filter 2 | Filter 3 | Filter 4 | |
Fraser 2006 | Precision Terms Filters | Specificity Terms Filters | NA | NA |
Furlan 2006 | Fixed method A | Fixed method B | Progressive method (CV) | Progressive method (CV or TW) |
CV: controlled vocabulary; TW: text words