Physical description for original version: iv, 46 p. : 28 cm
書誌注記
Bibliography: p. 9
原資料等に関する注記
原資料の出版事項: Hyattsville, Md. ; [Washington, D.C. : U.S. Dept. of Health and Human Services, Public Health Service, National Center for Health Statistics : Supt. of Docs., U.S. G.P.O., distributor], 1985