ECTHYMA GANGRENOSUM AS THE PRESENTING CLINICAL FEATURE OF X-LINKED AGAMMAGLOBULINAEMIA: REPORT OF THREE CASES AND A REVIEW OF LITERATURE. - Ismail, Intan Hakimah; Abidin, Mohd Azri Zainal; Radzi, Farah Syuhada Mohd; Ramlan, Saidatul Saadah; Adam, Julia; Ripen, Adiratna Mat (Current Allergy & Clinical Immunology, 2021)