[1] Hosp San Jose Hermosillo, Cardiol Dept, Hermosillo, Sonora, Mexico
[2] Univ Sonora, Dept Med & Ciencias Salud, Hermosillo, Sonora, Mexico
[3] Univ Autonoma Guadalajara, Fac Med, Guadalajara, Mexico
[4] Inst Mexicano Seguro Social, Div Cardiol, Natl Med Ctr, Obregon, Sonora, Mexico
[5] Hosp San Jose Hermosillo, Intens Care Unit Dept, Hermosillo, Sonora, Mexico