Brandão Pedro, Soares Elisa, Estevinho Catarina, Freixo Marília, Portela-Carvalho Ana Sofia, Ferreira Maria João
Department of Obstetrics and Gynaecology, Centro HospitalarTâmega E Sousa, Porto, Portugal.
Faculty of Medicine, University of Porto, Porto, Portugal.
J Med Ultrasound. 2018 Jul-Sep;26(3):171-173. doi: 10.4103/JMU.JMU_45_18. Epub 2018 May 25.