Evaluation of the accuracy of FISH plus conventional fetal karyotyping in a University Hospital in China

1 Ministry of Education Key Laboratory of Reproductive Genetics, Department of Reproductive Genetics, Women's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China 2 Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, China 3 The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, China