Sebastião, Cruz S.
Galangue, Manuela
Gaston, Celestina
Van-Dunen, Rui
Quivinja, Joltim
Lunbungululo, Emiliana
Alfredo, Domingos
Sozinho, Alberto
Teixeira, Alice
Manico, Eunice
Machado, Deodete
Mateus, António
David, Zinga
Paixão, Joana
Neto, Zoraima
de Vasconcelos, Jocelyne Neto
Morais, Joana
Article History
Received: 20 April 2021
Accepted: 25 October 2021
First Online: 2 November 2021
Declarations
:
: The study was reviewed and approved by the National Ethics Committee of the Ministry of Health of Angola (approval nr. 10/2021), the direction board of the Instituto Nacional de Sangue (approval nr. 726/GDG/INS/2020), and by the executive committee of the Clínica Girassol (approval nr. 0841/GEPP/PCE/2021). Moreover, anonymized data were used for analysis, and the need for individual informed consent was waived by the National Ethics Committee of the Ministry of Health of Angola for being a retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.