Anoop Kumar Singh, Soumya Ranjan Mahapatra and Suresh Kumar Behera 2023. Prevalence of Iron Deficiency in Patients of Heart Failure with Reduced Ejection Fraction and Response to Injectable Iron Therapy- A Hospital Based Observational Study. Journal of Advanced Zoology. 44, S6 (Nov. 2023), 347–354. DOI:https://doi.org/10.17762/jaz.v44iS6.2141.