Managing the positive periosteal margin after Mohs excision of scalp dermatofibrosarcoma protuberans in children with underlying calvarial bone thinning and resorption: The value of multidisciplinary treatment - Eugene Zheng, MD; Sai Cherukuri, MBBS; Christopher J. Arpey, MD; Edward S. Ahn, MD; Samir Mardini, MD; Waleed Gibreel, MBBS (Elsevier, 2023)