@misc{miscbb0a4aae,
title   = {Examining the ovaries by ultrasound for diagnosing hyperandrogenic anovulation. [Carta]: updating the threshold for never machines},
author = {Kollmann, Martina and Martins, Wellington de Paula and Raine-Fenning, Nick},
year = {2014},
doi = {10.1016/j.fertnstert.2014.01.012},
journal   = {Fertility and Sterility}
}