Clinical case mix: Congenital defects, head and neck; Neoplasms, head and neck -Craniomaxillofacial trauma; Cosmetic surgery, head and neck, trunk and; Breast; Hand/upper extremities; Lower extremities; Congenital and acquired defects of the trunk and genitalia; Microsurgery; Reconstruction by tissue transfer, including flaps and grafts; Benign and malignant lesions of the skin and soft tissue; Burn at LAC/USC.