TY - JOUR AU - Fraser, Cynthia AU - Murray, Alison AU - Burr, Jennifer PY - 2006 DA - 2006/08/18 TI - Identifying observational studies of surgical interventions in MEDLINE and EMBASE JO - BMC Medical Research Methodology SP - 41 VL - 6 IS - 1 AB - Health technology assessments of surgical interventions frequently require the inclusion of non-randomised evidence. Literature search strategies employed to identify this evidence often exclude a methodological component because of uncertainty surrounding the use of appropriate search terms. This can result in the retrieval of a large number of irrelevant records. Methodological filters would help to minimise this, making literature searching more efficient. SN - 1471-2288 UR - https://doi.org/10.1186/1471-2288-6-41 DO - 10.1186/1471-2288-6-41 ID - Fraser2006 ER -