1 ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Barcelona 08036, Spain. Electronic address: abardaji@clinic.ub.es.
2 Global Health Center, Cincinnati Children's Hospital, Cincinnati, OH, USA.
3 Centro de Investigação em Saúde da Manhiça, Maputo, Mozambique.
4 ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Barcelona 08036, Spain.