Nathaniel, B., Luse, L., Chriestya, F. and Maslim, Y. (2020) “Relationship between Chronic Heart Failure Functional Class and Anaemia Severity in Patients of Atma Jaya Hospital”, Journal Of The Indonesian Medical Association, 70(10), pp. 194-199. doi: 10.47830/jinma-vol.70.10-2020-284.