TY - BOOK AU - Short, M. ED - European Society of Contraception. TI - The rationale of estrogen dose reduction: the justification for 20 [micrograms] ethinylestradiol edited by M. Short SN - 1850707855 PY - 1997/// CY - New York PB - Parthenon Publishing KW - Contraceptives,Oral, Combined KW - administration & dosage KW - congresses KW - Ethiny Estradiol KW - adverse effects N1 - The proceedings of a symposium held at the 4th congress of the European Society of Contraception, Barcelona, June 1996; Includes bibliographical references and index ER -