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Dyfyniad Arddull ChicagoCreighton, Sarah, and Paul Abrams. "Artificial Urinary Sphincters—Early Experience." Bristol Med Chir J 1989.
Dyfyniad MLACreighton, Sarah, and Paul Abrams. "Artificial Urinary Sphincters—Early Experience." Bristol Med Chir J 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.