The Different Dose-Volume Effects of Normal Tissue Complication Probability Using LASSO for Acute Small-Bowel Toxicity during Radiotherapy in Gynecological Patients with or without Prior Abdominal Surgery
V4~V40 Gy: the range of small-bowel volume in Gy of dose; group 0: patients without prior abdominal surgery; group 1: patients with prior abdominal surgery.