Export Date: 23 December 2012, Source: Scopus, CODEN: UOGYF, doi: 10.1002/uog.8986, Language of Original Document: English, Correspondence Address: Martins, W. P.; Departamento de Ginecologia e Obstetrícia da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Avenida dos Bandeirantes, 3900, 8o andar, Ribeirao Preto, Sao Paulo, CEP: 14049-900, Brazil; email: wpmartins@gmail.com, References: Martins, W.P., Three-dimensional power Doppler: Validity and reliability (2010) Ultrasound Obstet Gynecol, 36, pp. 530-533;