Source: https://www.researchgate.net/profile/Clemence-Lesimple/publication/277007116_Detecter_bien-etre_et_mal-etre_chez_le_cheval_difficultes_et_solutions/links/555da20408ae8c0cab2ad873/Detecter-bien-etre-et-mal-etre-chez-le-cheval-difficultes-et-solutions.pdf