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. 2016 Jul 11;17:269. doi: 10.1186/s12891-016-1143-3

Fig. 4.

Fig. 4

Frequency distribution of the hidden blood loss measurements. Its Concentration is shown as the obviously centralized distribution in two groups, and in Group PFNA-II, most of the values are approximately 277 ml, in Group DHS, approximately 139 ml. DHS, dynamic hip screw; PFNA-II, Asia proximal femoral nail anti-rotation