Another excellent international case study comes from bike manufacturer Triumph, which lost steam in its British home base three decades ago, but found new life by heading overseas. In 2010, Triumph sold just 7,562 bikes in the UK, but 50,000 worldwide, indicating that an international interest paid off for the company. Triumph's famous factory in Warwickshire closed up shop in 1983, but the Indian factory remained, and these days, the motorcycles have become the country's Harley Davidson. The company struggles to meet demand in India, with a six month waiting list and a new factory being built. India's middle class has embraced the vehicle as an affordable commodity, even giving them as dowries in weddings.

41 How can cranial arteritis be diagnosed in the absence of any physical symptom or feature of the disease other than headache?

42 Do pulmonary manifestations in Behet's syndrome present with pulmonary infiltrates in the upper zone of the lung?

43 1. Is Behet's disease accompanied by an elevated erythrocyte sedimentation rate (ESR)? If so, how often? 2. Can Behet's disease be diagnosed in a young adult with an ischaemic stroke and a history of almost weekly mouth ulcers that heal quickly, but with no other symptoms of Behet's disease?

44 Mouth ulcers are too common to be a cardinal feature in the diagnosis of Behet's disease. Are there any distinguishing features other than mouth ulcers that would confirm diagnosis?

45 Please explain how to diagnose familial Mediterranean fever. Is a diagnosis of exclusion still used or are there now more up-to-date tools for the diagnosis?

46 Is a leucocytoclastic reaction in a tissue biopsy specific for Henoch-Schnlein purpura or is it also associated with other problems?

47 What are the anatomical, histological and radiological differences between: 1. physis 2. metaphysis 3. epiphyseal disc 4. epiphyseal line?

48 Why does the serum alkaline phosphatase increase in bone disorders and in some other disorders?

49 What is the normal amount of calcium excreted in the urine in a 24-hour period?

50 Does hydrochlorothiazide have a prophylactic effect against osteoporosis?