Inclusion Criteria:

- Patients diagnosed with one cancer among head and neck cancer, esophageal cancer,
breast cancer, colorectal cancer, gastric cancer, and non-small cell lung cancer, who
are being treated or going to be treated as one between A and B A. Chemotherapy only
B. Concurrent chemoradiotherapy

Exclusion Criteria:

- Patients who are pregnant or breast feeding, absent from effective(medically proven)
contraceptive method for females of childbearing potential

- Patients with performance status of ECOG score is more than 3