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. 2016 May 2;4:e1978. doi: 10.7717/peerj.1978

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©2016 Fontanarrosa and Abdala

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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(A) Hand dimension variables: the skeletal structures that correspond to those variables are highlighted. Carpus: (1) Width of the centrale bone; (2) Proximal-distal length of the palmar sesamoid; Metacarpus : (3) Width of the first metacarpal; Digits : (4) Length of the first phalanx of digit five; (4) Width of the fourth phalanx of digit four. (B) Dispositional variable: divergence angle between the first metacarpal and the fifth one.