â¢ oral complications Oral Complications of Chemotherapy and Head/Neck Radiation (NIH National Cancer Institute) National Cancer Institute (NIH National Cancer Institute) National Cancer Institute cancer can have a number of oral effects inglÃ©s Oral Complications of Chemotherapy and Head/Neck Radiation Oral Complications of Chemotherapy and Head/Neck Radiation Oral Complications of Chemotherapy and Head / Neck Radiation