2448-9190 2448-9190 S2448-91902019000400474 10.29262/ram.v66i4.706 Mexico Mexico Mexico 00 12 2019 00 12 2019 66 4 474 482

1 Department of Health, Education, and Welfare National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research 2014 81 3 3 4-13 2 2013 3 2016 4 2000 283 20 20 2701-11 5 2019 66 1 1 115-22 6 1983 7 1996 8 2019 155 168-75 9 1987 317 3 3 141-5 10 2016 63 2 2 201-6 11 2017 64 3 3 364-70 12 2017 7 1 1 71-7