This document contains a list of medical conditions and the key diagnostic tests or findings for each. It includes conditions related to hematology like pernicious anemia, leukemia, and lymphoma. It also covers pulmonary diseases, endocrinology, hepatology, gastroenterology, cardiology, and other internal medicine specialties. For each condition, 1-3 key diagnostic criteria are bulleted, such as macrocytic anemia and positive anti-gastric parietal cell antibodies for pernicious anemia and Philadelphia chromosome for chronic myeloid leukemia.