Oncology Nutrition Market by Type of Cancer (Head & Neck Cancer, Stomach & Gastrointestinal Cancers, Esophageal Cancer, Pancreatic Cancer, Liver Cancer, Blood Cancer, Breast Cancer, Lung Cancer and Other Cancers): Global Opportunity Analysis and Industry Forecast, 2019–2026. Cancer involves uncontrollable growth of abnormal cells. These cells are called as tumor cells or malignant cells. The field …