The women and their pregnancies : the Collaborative Perinatal Study of the National Institute of Neurological Diseases and Stroke /
Kenneth R. Niswander [and] Myron Gordon
- Washington, D. C. : The Departement, 1972
- xv, 540 p. : ill. ; 26 cm.
- DHEW publication ; no. (NIH) 73-379 .
"Characteristics and conditions of pregnancy, by institution": (microfiche. 2 sheets 11 x 15 cm.) in pocket In