Patel, B. J., K. H. Patel, A. Kharadi, and B. Panchal. “Role of Subcutaneous Corrugated Drain in Class IV Surgical Wound”. International Surgery Journal, vol. 2, no. 2, Dec. 2016, pp. 252-5, https://www.ijsurgery.com/index.php/isj/article/view/565.