Table 2.

Language of the data used in the papers (n=194).

Data language	Publications, n (%)	References
English	153 (78.9)	[15-17,19-25,27-38,41-48,50,51,53-68,71,72,74,75,78-80,83-88,90-92,96,97,99-112,114,116,119-124,126-135, 137,140,142-149,151-154,156-159,161,162,165-176,179,181,184-187,189-192,194-196,198,200-208]
French	27 (13.9)	[39,49,52,73,76,77,81,89,93,94,113,115,118,125,136,138,139,155,163,164,177,178,182,183,188,193,197]
German	9 (4.6)	[18,26,69,95,117,150,160,180,199]
Korean	3 (1.5)	[40,65,82]
Japanese	1 (0.5)	[98]
Not mentioned	2 (1)	[70,141]