by Johnsonbaugh, R E, Georges, L P, Czerwinski, C L, Edson, M
Published in Andrologia (01.07.1979)

by Corrigan, D F, Schaaf, M, Whaley, R A, Czerwinski, C L, Earll, J M
Published in The New England journal of medicine (14.04.1977)

by Johnsonbaugh, Roger E., Czerwinski, Carol L., Edson, Mitchell
Published in Contraception (Stoneham) (01.12.1977)