Objective: To provide a Canadian consensus document with recommendations on prenatal screening for and diagnosis of fetal aneuploidy (e .g ., Down syndrome and trisomy 18) in twin pregnancies . Options: The process of prenatal screening and diagnosis in twin pregnancies is complex . This document reviews the options available to pregnant women and the challenges specific to screening and diagno...

BACKGROUND Prenatal diagnosis of congenital and hereditary diseases is a priority for the development of medical technologies in Russia. However, there are not many published research results on bioethical issues of prenatal DNA testing. OBJECTIVE The main goal of the article is to describe some of the bioethical aspects of prenatal DNA diagnosis of hereditary diseases with late onset in gene...