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Jorge Gómez Tapias, Nohora E. Montes Ramírez, María F. Almanza Meléndez, Fernando A. Alcárcel Gutiérrez, César A. Madrid Montoya, Hans Diederix. Episodes 2017;40:201-12. https://doi.org/10.18814/epiiugs/2017/v40i3/017023
Tapias et al. (Fri,) studied this question.