1
enthalten in: BMJ (Clinical research ed.) | 2016



2
enthalten in: BMJ (Clinical research ed.) | 2012



3
enthalten in: BMJ (Clinical research ed.) | 2012



4
enthalten in: BMJ (Clinical research ed.) | 2012



5
enthalten in: BMJ (Clinical research ed.) | 2011



6
enthalten in: BMJ (Clinical research ed.) | 2010



7
enthalten in: BMJ (Clinical research ed.) | 2010



8
enthalten in: BMJ (Clinical research ed.) | 2010



9
enthalten in: BMJ (Clinical research ed.) | 2009



10
enthalten in: BMJ (Clinical research ed.) | 2009