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The pie charts show some important changes in the amount of employment in different industrial sectors between 2007 and 2017. In 2007, Vietnam employed 50.68 per cent of its workforce in agriculture. By 2017, this had fallen to 40.87 per cent. In contrast, the number of people employed in the tertiary sector rose from 28.35 per cent to 34.06 per cent. Employment in the secondary sector also grew from 20.97 per cent to 25.07 per cent. These changes have resulted in a more balanced economy for Vietnam. It was less dependent on agriculture for employment in 2017 than it was in 2007. Although the proportion of the working population in each industrial sector is by no means equal, it is certainly more balanced. The gap between the proportion employed in the primary sector and those employed in the tertiary sector has closed.

11 What is the significance of renal disease with respect to anaemia, if any?

12 Can anaemia be a differentiating point between muscle wasting and cachexia owing to another systemic disorder?

13 Anaemia of chronic disease does not respond to iron therapy, but there are trials studying the use of iron and erythropoietin (EPO). Could you tell me where to find more detailed information about these trials, and whether there have since been any further developments?

14 Is the deoxyuridine test helpful?

15 The Schilling test is very rarely performed. Why is this?

16 There is no extramedullary haematopoiesis in aplastic anaemia, why?

17 Why is the anaemia in aplastic anaemia, macrocytic?

18 Is vitamin B12 absorbed passively from the jejunum?

19 What role does 'R' binder play in the absorption of vitamin B12?

20 In pernicious anaemia, investigation of the serum shows an elevated level of gastrin. Why is it so?

21 1. Please explain the term Coombs' positive (direct and indirect) and negative haemolytic anaemia. 2. What are the principles of the Coombs' test?