Bibi, Ayesha, et al. “EFFECT OF HEAD COVERING ON HYPOCALCAEMIA RESULTING FROM PHOTOTHERAPY IN FULL TERM NEONATES WITH HYPERBILIRUBINEMIA”. Pakistan Armed Forces Medical Journal, vol. 70, no. 4, Aug. 2020, pp. 1148-52, https://pafmj.org/PAFMJ/article/view/5111.