1. 1Department of Woman’s and Child’s Health, University of Padova, Padova, Italy;
2. 2Operational Research Unit, Doctors with Africa CUAMM, Beira, Mozambique;
3. 3Operational Research Unit, Doctors with Africa CUAMM, Padova, Italy;
4. 4Center for Research in Infectious Diseases, Faculty of Health Sciences, Catholic University of Mozambique, Beira, Mozambique