Bisphosphonates, IBS and diet, CRP test for infection, Randomisation

Clarification of new evidence that Bisphosphonates for osteoporosis may actually weaken bones if people are left on them for too long ; Dietary change using FODMAPS to treat Irritable bowel syndrome when medicines have not worked; CRP testing for chest infections to identify which need antibiotics; And Mark eats humble pie for getting clinical terminology mixed up.