Muhammad Aslam Rind1, Maria Nazir Khyber2, Muhammad Saleem Rind3, Iffat Jamal4, Nazish Memon5, Shahzad Shaikh6. “ PAKISTAN”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 10, no. 4, Dec. 2020, pp. 57-61, http://publication.pumhs.edu.pk/index.php/ojs/article/view/531.