'The Spermicidal Powers of Chemical Contraceptives, I Introduction, and experiments on guinea-pig sperms', by John R Baker, Journal of Hygiene

Date:
1930
Reference:
SA/FPA/NK/233/5

Licence: In copyright

Credit: 'The Spermicidal Powers of Chemical Contraceptives, I Introduction, and experiments on guinea-pig sperms', by John R Baker, Journal of Hygiene. Source: Wellcome Collection.

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