TY - GEN AU - Malfroy,M AU - Llewelyn,C A AU - Johnson,T AU - Williamson,L M TI - Using patient-identifiable data for epidemiological research SN - 0958-7578 PY - 2005///0421 KW - Epidemiology KW - Humans KW - Patient Identification Systems KW - ethics KW - United Kingdom N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1111/j.0958-7578.2004.00514.x ER -