Osseous metaplasia of the endometrium associated with infertility: a case report and review of the literature - Silva, Júlio César Rosa e; Barcelos, Ionara Diniz Evangelista Santos; Navarro, Paula Andrea de Albuquerque Salles; Silva, Ana Carolina Japur de Sá Rosa e; Nogueira, Antonio Alberto; Ferriani, Rui Alberto (Journal of Medical Case Reports, 2009)