2448-6531 2448-6531 S2448-65312021000201917 10.24201/hm.v70i4.4247 Mexico 00 06 2021 00 06 2021 70 4 1917 1948

1984 3 1989 2001 2013 2189-2194 2189-2194 1961 2010 2002