Title
Skeletal maturity of youth 12-17 years, United States / [Alex F. Roche, Jean Roberts, and Peter V. V. Hamill].
Published
Rockville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1976.