Pedunculated focal nodular hyperplasia of the liver in a healthy child born following in vitro fertilization: a case report and review of the literature oleh Mani Moayerifar, Pirouz Samidoust, Mahboobeh Gholipour, Maziar Moayerifar, Athar Zamani, Niloofar Poorheravi, Selvana Poursadrolah