by Bayasgalan, Gendaram, Naranbat, Dondog, Tsedmaa, Baatar, Tsogmaa, Bayanmunkh, Sukhee, Dombojav, Amarjargal, Olzvoi, Lhagvasuren, Tserenkhuu, Radnaabazar, Janchiv, Rowe, Patrick John
Published in The journal of obstetrics and gynaecology research (01.10.2004)