Frustrated by PPFA 's meager interest and support , McCormick and Sanger met with Pincus in 1953 to dramatically expand the scope of the research with 50-fold increase in funding from McCormick .
In 1952 , Sanger told her friend Katharine McCormick about Pincus and Chang 's research .
Frustrated by PPFA 's meager interest and support , Katharine McCormick and Sanger met with Pincus in 1953 to dramatically expand the scope of the research with 50-fold increase in funding from Katharine McCormick .
In 1952 , Sanger told her friend Katharine McCormick about Pincus and Chang 's research .