1. Medical Genetic Department, The Affiliated Hospital of Qingdao University , NO.16 Jiang Su Road, Qingdao 266071, China
2. Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University , NO.16 Jiang Su Road, Qingdao 266071, China
3. Department of Urology, Qingdao Municipal Hospital Group , NO.5 Middle Dong Hai Road, Qingdao 266071, China