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Dyfyniad Arddull ChicagoDecherney, Alan H., and Martin L. Pernoll. Current Obstetric & Gynecologic Diagnosis & Treatment. Los Altos, Calif: Appleton Lange, 1994.
Dyfyniad MLADecherney, Alan H., and Martin L. Pernoll. Current Obstetric & Gynecologic Diagnosis & Treatment. Appleton Lange, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.