ethicalconcern、ethicalconcerns

1、OverseasEnglish海外英语EthicalConcernJosephHeller'sCatch22XIANYujingTourismInstituteBeijingUnionUniversity，Beijing，ChinaAbstractCatch22。

2、Is it ethical to provide IVF addons when there is no evidence of a benefit if the patient requests it？ Mila Stefanova Zemyarska， Journal of Medical Ethics， 2019。