Additional file 2.

Table S2 - Duration of body segments' positions. Duration of the time periods the surgeons remained uninterruptedly in various posture categories of the head, trunk and right arm; average and range (in brackets) of the mean durations for the single operations (direct endoscopy: n = 10, monitor endoscopy: n = 9).

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Luttmann et al. Journal of Occupational Medicine and Toxicology 2009 4:26   doi:10.1186/1745-6673-4-26