[1] Minimally Invas Surg Ctr Jesus Uson CCMIJU, Caceres, Spain
[2] Texas A&M Univ, Large Anim Clin Sci Dept, College Stn, TX USA
[3] Univ Porto, CECA ICETA, Oporto, Portugal
[4] Texas A&M Univ, Coll Vet Med & Biomed Sci, Vet Physiol & Pharmacol, College Stn, TX USA