“…The included studies enrolled a total of 20,013 physicians from 12 European countries ( Table 1 ). Eight studies were conducted in Germany [ 18 , 23 , 26 , 27 , 28 , 29 , 32 , 35 ], three in the Netherlands [ 19 , 36 , 40 ], two in Sweden [ 24 , 37 ], two in Finland [ 17 , 22 ], two in Poland [ 21 , 39 ] and one in each of: the United Kingdom [ 20 ], Hungary [ 38 ], Greece [ 34 ], Italy [ 30 ], France [ 31 ], Austria [ 25 ] and Spain [ 33 ]. Twenty-two studies were cross-sectional and three were cohort studies [ 22 , 36 , 37 ].…”