RT Journal Article SR Electronic T1 Current Therapy of Infertility—3 ed. by Celso-Ramón García, Luigi Mastroianni, Jr., Richard D. Amelar, and Lawrence Dubin JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 547 OP 548 VO 56 IS 5 A1 Robert Collins YR 1989 UL http://www.ccjm.org/content/56/5/547.2.abstract AB