Ludwin A, Ludwin I, Martins W P
Department of Gynecology and Oncology, Jagiellonian University, Krakow, Poland.
Ludwin & Ludwin Gynecology, Private Medical Center, Krakow, Poland.
Ultrasound Obstet Gynecol. 2018 Jan;51(1):143-145. doi: 10.1002/uog.17405.