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- [2] OBSTETRICAL FORCEPS AND VACUUM EXTRACTOR - AN ASSESSMENT OF THEIR COMPRESSIVE FORCE OBSTETRICS AND GYNECOLOGY, 1962, 19 (02): : 204 - &
- [3] CICATRICIAL ALOPECIA IN AN INFANT AFTER OBSTETRICAL DELIVERY BY A VACUUM EXTRACTOR DERMATOLOGICA, 1969, 139 (05): : 338 - +
- [5] AN EASILY MADE FLEXIBLE VACUUM-TIGHT JOINT JOURNAL OF SCIENTIFIC INSTRUMENTS, 1952, 29 (06): : 204 - 204