Ahmed, Zulfiqar, Muhammad Shahid, Muhammad Shazar Malik, and Shahid Hussain. 2017. “COMPARISON OF KARYDAKIS TECHNIQUE WITH LIMBERG FLAP PROCEDURE FOR SACROCOCCYGEAL PILONIDAL SINUS DISEASE IN TERMS OF HOSPITAL STAY AND WORK LOSS: Procedure for Sacrococcygeal Pilonidal Sinus Disease”. Pakistan Armed Forces Medical Journal 67 (1):141-44. https://www.pafmj.org/PAFMJ/article/view/207.