Word: wray
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Dates: during 1961-1961
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Natural progesterone is too costly and must be given in such massive doses as to be unsuited for wide use. Then Pincus and colleagues found that norethynodrel worked better and in far smaller doses. Pincus and Rock teamed with Puerto Rico's Dr. Edris Rice-Wray in a big-scale test of the drug as a contraceptive among San Juan slum dwellers. While "on the pills" only 16 out of 838 women in four study areas became pregnant and all 16 had skipped their pills occasionally. Equally important, among the 174 women who dropped out of the test because...