Maqbool Ahmed’, Prof Amjad Ali Sahto2, Ali Muhammad’, Nisar Ahmed , Kainat Saleem’. “Comparative Study on Dacryocystorhinostomy (DCR) Surgery With Silicon Tube Intubation and Without Silicon Tube Intubation”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 9, no. 2, June 2019, pp. 38-42, http://publication.pumhs.edu.pk/index.php/ojs/article/view/441.