“…Via manually searching of the references used in those studies an additional 17 studies were included. In total 17 studies were excluded for analysis because they did not meet the inclusion criteria (5 studies) [11], [19], [20], [21], [22], or contained data already published in another paper (6 studies) [8], [23], [24], [25], [26], [27] or consisted of reviews instead of original data (5 studies) [3], [5], [28], [29], [30] or could not be retrieved (1 study). This led to a total number of 50 studies to be included into the study [4], [6], [7], [9], [10], [12], [13], [17], [18], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], [47], [48], [49], [50], [51], [52], [53], [54], [55], [56], [57], [58], [59], [60], [61], [62], [63], [64], [65], <...>…”