@article{article4d90add1,
title   = {Influence of menstrual cycle on NK activity},
author = {Souza, Saulo Soares de and Castro, Fabíola Attié de and Mendonca, Heliodora Carneiro de and Palma, Patricia Vianna Bonini and Morais, F. R. and Ferriani, Rui Alberto and Voltarelli, Júlio César},
year = {2001},
doi = {10.1016/s0165-0378(00)00091-7},
journal   = {Journal of Reprodutive Immunology}
}