Karim, H. M. R., and T. H. Khan. “Religious Belief As Determinant of Animal Derived Medications in Health Care: How Much Is Fairly Good?”. Anaesthesia, Pain & Intensive Care, Vol. 22, no. 2, Jan. 2019, pp. 151-4, https://mail.apicareonline.com/index.php/APIC/article/view/38.