How to cite this article:
Guimarães F, Roque M, Valle M, Kostolias A, de Azevedo RA, Martinhago CD, Sampaio M, Geber S. Live births after polar body biopsy and frozen-thawed cleavage stage embryo transfer: case report. JBRA Assist. Reprod. 2016; 20:253-256.