A randomized control trial comparing peginterferon-α-2a versus observation after stopping tyrosine kinase inhibitor in chronic myeloid leukaemia patients with deep molecular response for at least two years: Interim analysis - Kuan, Jew-Win; Chang, Kian-Meng; Loh, Weng Khean; Phan, Chin Lee; Wong, Shu Ping; Chai, Alvin Jung Mau; Yong, Kar Ying; Voon, Kit Kian; Lim, Soo Min; Toh, See Guan (College of Pathologists, Academy of Medicine Malaysia, 2019)