Transvaginal/transrectal ultrasound for assessing myometrial invasion in endometrial cancer: a comparison of six different approaches - Luis Alcazar, Juan; Pineda, Laura; Martinez-Astorquiza Corral, Txanton; Orozco, Rodrigo; Utrilla-Layna, Jesus; Juez, Leire; Jurado, Matias (Journal Of Gynecologic Oncology, 2015)