Received: 19 February 2020
Accepted: 7 May 2020
First Online: 20 May 2020
Ethics approval and consent to participate
: This study was approved by the Foundation Human Research Ethical Committee (CEP/HEMOAM) under CAAE Nº 73548017.5.0000.0009, and all methods were performed in accordance with the relevant guidelines and regulations. Patients and a parent or guardian of any child participant enrolled in the study provided their written informed consent, before specimens were collected and the results and data were used for the management of each respective patient.
: The authors report no competing interest. The authors alone are responsible for the content and the writing of the paper.