| Inclusion Criteria: | 1) Patients receiving 5 to 6-week course of chemoradiation for abdominal-pelvic tumors (gastric cancers, gastro-esophogeal (GE) junction, pancreatic, cervix, vulvar, endometrial, or anal) using conventional fractionation [(180cGy-200cGy per day)]
2) Patients receiving concurrent abdominal-pelvic radiation and single agent or combination of cisplatin, paclitaxel, CPT-11, oxaliplatin or 5-FU, capecitabine, gemcitabine, or bevacizumab (Avastin).
3) Patients must be least 18 years of age
4) Controls must be individuals with no prior cancer diagnosis
5) Controls must be at least 18 years of age
6) Controls must be the caregivers of patients on this study |