Zada, Bakht, et al. “Etiological Aspects of Hoarseness of Voice Among Patients Attending in A Tertiary Care Hospital: Etiological Aspects of Hoarseness ”. Pakistan BioMedical Journal, vol. 5, no. 6, June 2022, pp. 267-70, https://doi.org/10.54393/pbmj.v5i6.570.