TY - RPRT TI - Building an expert system: a systematic approach to developing an instrument for data extraction from the literature. AU - Renee Daiuta Feuerbach AU - Teresa L Panniers DO - 10.1097/00001786-200304000-00006 UR - https://pubmed.ncbi.nlm.nih.gov/12680599/ ID - 12680599 ER -