TY - BOOK AU - Riegelman,Richard K. TI - Studying a study and testing a test: how to read the medical evidence SN - 0781718600 U1 - WA 950 21 PY - 2000/// CY - Philadelphia, Pa. PB - Lippincott Williams & Wilkins KW - Medical literature KW - Evaluation KW - Medicine KW - Research N1 - Includes index ER -