Sondang Jasmine Sitorus, Gede Rur Us Suryawan, and Rosi Amrilla Fagi, “Calcific pericarditis strangling the heart, an answer to unexplained heart failurediagnostic modalities”, J Pak Med Assoc, vol. 74, no. 6 (Supple), pp. S61-S64, Jul. 2024.