[Washington] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978
"Supported in part by Contract 1-HO-1-2327 from the National Heart, Lung, and Blood Institute and grants from the Commonwealth Fund and the Burroughs Wellcome Fund."