0120-5633 0120-5633 S0120-56332020000400303 10.1016/j.rccar.2019.09.011 Peru Perú 00 08 2020 00 08 2020 27 4 303 306

1. 2018 38 141-8 2 1988 63 851-63 3. 4. 2006 16 12-20 5 2018 3 13-20 6 1997 134 508-13 7 2014 24 191-200 8. 2018 33 1076-85 9 1993 125 1419-24