TY - RPRT TI - Representing information in patient reports using natural language processing and the extensible markup language. AU - C Friedman AU - G Hripcsak AU - L Shagina AU - H Liu DO - 10.1136/jamia.1999.0060076 UR - https://pubmed.ncbi.nlm.nih.gov/9925230/ ID - 9925230 ER -