00810cam a22002411 4500 med48001358 DLC 20260227111611.0 771206s1947 nyu 000 0 eng med48001358 (OCoLC)3468402 DLC NWM DLC premarc QP535.C9 C57 Copper & Brass Research Association (U.S.) Copper and health. New York [1947] 47 p. 23 cm. "Much of the information ... was compiled by Dr. R. R. Sayers ... when he was serving as chief of the Division of industrial hygiene, United States Public health service. Bibliographical footnotes. Copper Physiological effect. Sayers, R. R. (Royd Ray), 1885-1965. 39014 39014