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This volume does, in a smaller way, what Cooper's excellent compilation did quite completely when first published a few years ago. It discusses various methods used in birth control, including all the chemical preparations and mechanical devices, and records the experience of a clinic in checking the dependability of these technics.
Physicians' Manual of Birth Control.. JAMA. 1931;97(10):731. doi:10.1001/jama.1931.02730100055045