You searched for: Issue Dates October 1959 Remove constraint Issue Dates: October 1959 Product Keywords Chorionic gonadotropin Remove constraint Product Keywords: Chorionic gonadotropin Collections Drugs and Devices, 1940-1963 Remove constraint Collections: Drugs and Devices, 1940-1963 Defendants Richlyn Laboratories. Remove constraint Defendants: Richlyn Laboratories. Titles 5590. Chorionic gonadotropin. Remove constraint Titles: 5590. Chorionic gonadotropin.