TY - GEN AU - McMahon,F G TI - The perils of identifying quacks SN - 0028-4793 PY - 1980///0514 KW - Expert Testimony KW - Malpractice KW - legislation & jurisprudence KW - Quackery KW - United States KW - United States Food and Drug Administration N1 - Publication Type: Letter UR - https://doi.org/10.1056/NEJM198004103021521 ER -