. 2020 Mar 31;11:207. doi: 10.3389/fneur.2020.00207
Copyright © 2020 Geroin, Artusi, Gandolfi, Zanolin, Ceravolo, Capecci, Andrenelli, Ceravolo, Bonanni, Onofrj, Telese, Bellavita, Catalan, Manganotti, Mazzucchi, Giannoni, Vacca, Stocchi, Casali, Falup-Pecurariu, Zibetti, Fasano, Lopiano and Tinazzi.
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Figure 1.
(A) The malleolus method; (B) the upper method; (C,D) the perpendicular method.