Eutocia by means of Nitrous Oxide Gas Analgesia; a Safe Substitute for the Freiburg Method.
3 pages (pp. 1187-1189) IN: Journal of the American Medical Association, vol. 64, no. 14. Tall 4to, sewn, modern wrappers. Chicago, 1915. First Edition. Whole number offered entire. Introduction of gas-oxygen anesthesia in childbirth. GM 6218. More