2.2. Participants
malignant lymphoma, cancer, urinary tract stones, sarcoma, tumors, epithelial carcinoma
POSTOPERATIVE COMPLICATIONS, MALIGNANT LYMPHOMA, CANCER, SARCOMA, TUMORS
Specifics regarding the inclusion and exclusion criteria can be found in the original report [Exclusion criteria included cases in which tumors were not resectable through surgery, instances of severe postoperative complications occurring prior to the initiation of supplementation, pathological diagnoses other than epithelial carcinoma (such as malignant lymphoma and sarcoma), pathological stage 0 or IV cancer, requirement to take vitamin D supplements or active vitamin D, and history of urinary tract stones. Collaborating surgeons discussed the trial with eligible patients and their families at outpatient clinics before the surgery and invited them to participate. All clinical data were collected at the International University of Health and Welfare Hospital, and monitored at the Division of Molecular Epidemiology of the Jikei University School of Medicine.