Lucely Cetina , Lesbia Rivera , José Hinojosa , Adela Poitevin , Jesús Uribe , Carlos López-Graniel , David Cantú , Myrna Candelaria , Jaime de la Garza and Alfonso Dueñas-González
BMC Women's Health 2006, 6:3doi:10.1186/1472-6874-6-3