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. 2017 Mar 16;12:10. doi: 10.1186/s13013-017-0114-2

Fig. 15.

Fig. 15

This figure shows four different brace designs. All of them are physiological at the middle sagittal plane but their very market asymmetric design makes them appear very different when observed from one side or the other. First one is an A1 type, second is A2, third is B1, and last E1 (names according to the Rigo classification and brace design)