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Dyfyniad Arddull ChicagoSADLER, T.W. Langman's Medical Embryology.-- Ed.9. Philadelphia: Lippincott Williams and Wilkins, 2004.
Dyfyniad MLASADLER, T.W. Langman's Medical Embryology.-- Ed.9. Lippincott Williams and Wilkins, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.