Assess - Hypogonadism in either sex, including untreated premature menopause, treatment with aromatase inhibitors or gonadotrophin-releasing hormone agonist. Endocrine conditions, including diabetes mellitus, Cushing's disease, hyperthyroidism, hyperparathyroidism. Conditions associated with malabsorption, including inflammatory bowel disease, coelic disease and chronic pancreatitis, Rheumatoid arthritis. Haematological conditions, COPD, CKD, immobilty.