Corner, G. W. Progesterone and the defence mechanism of pregnancy / G. W. Corner ; edited by G. E. W. Wolstenholme and Margaret P. Cameron. - Boston : Little, brown and company, 1961. - viii, 108 p. : ill. ; 19 cm. - Ciba foundation study group ; 9 . Includes index. 337 337 LCCN: 68002841 Subjects--Topical Terms: Medical Science--pregnancy. Dewey Class. No.: 618.2 / W837p