Lower limb prosthesis: Optimization by lattice and four-bar polycentric knee. - Enrique Contreras-Tenorio; Ilse Kardasch-Nava; Shazer González de Salceda; Ruben Fuentes-Alvarez; Juan Alfonso Beltrán Fernández; Karla Rincón-Martínez; Mariel Alfaro-Ponce; Iván Matehuala-Morán (EMBC, 2021)