Immunization against smallpox before Jenner.
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History, 17th Century↗
Biomedical subjects
W L Langer
Publications and source records attributed to W L Langer.
The origins of the birth control movement in England in the early nineteenth century.
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Contraception↗
Further notes on the history of infanticide.
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Contraception↗
Infanticide: a historical survey.
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Contraception↗