TY - RPRT TI - Differences in risk estimations from a hospital and a population-based case-control study. AU - D W West AU - K L Schuman AU - J L Lyon AU - L M Robison AU - R Allred PY - 1984 DO - 10.1093/ije/13.2.235 UR - https://pubmed.ncbi.nlm.nih.gov/6735571/ ID - 6735571 ER -