TY - RPRT TI - Methodologic standards and contradictory results in case-control research. AU - R I Horwitz AU - A R Feinstein PY - 1979 DO - 10.1016/0002-9343(79)91164-1 UR - https://pubmed.ncbi.nlm.nih.gov/433963/ ID - 433963 ER -