RT Journal Article SR Electronic T1 Takotsubo cardiomyopathy or hidden cardiotoxic event by rituximab JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 18 OP 19 DO 10.7861/clinmed.22-4-s18 VO 22 IS Suppl 4 A1 Arkar Min A1 Khin Lei Yee Win YR 2022 UL http://www.rcpjournals.org/content/22/Suppl_4/18.abstract