Dhillon, K. S., Deepak Sharma, Tarunveer Singh, Ritika Srivastava, Soni Yadav, Vidhi Agarwal, Areeba Khan, and Sweksha Srivastava. 2017. “Spectrum of Papillon–Lefevre Syndrome”. International Journal of Advances in Medicine 1 (3):269-72. https://www.ijmedicine.com/index.php/ijam/article/view/493.