ETHICS STATEMENT
The study protocol was approved by the Scientific research and Postgraduate Board of Damascus University Ethics Committee, Damascus, Syria (IRB No. UDDS‐4030‐26082019/SRC‐1450). The study protocol was also enrolled at the Australian New Zealand Trials (12621001631897). A detailed information sheet in simple nontechnical language was provided in advance, and parents/guardians were requested to sign an informed consent. The patients and parents were blinded to the study as they were not provided any information about the treatment group to which they were assigned.