United States sexual physiologist whose hunch that progesterone could block ovulation led to the development of the oral contraceptive pill (1903-1967)
Gregory Pincus and John Rock with help from the Planned Parenthood Federation of America developed the first birth control pills in the 1950s which became publicly available in the 1960s.
In July 2007, Alliance was fully acquired by Warburg Pincus, a global private equity firm and the Mahansaria family for about $48 Million plus Alliance's debt of $100 Million.
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