Sri Wijayanti, I. A., N. P. A. P. . Mahadewi, P. G. . Sudira, K. . Tini, N. M. . Susilawathi, and I. M. O. . Adnyana. “Headache in Healthcare Workers Related to Personal Protective Equipment Use in COVID-19 Referral Hospital”. Universa Medicina, vol. 42, no. 1, Apr. 2023, pp. 52-60, doi:10.18051/UnivMed.2023.v42.52-60.