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Alvarado-Cabrero I, Hernández S, Kelly G J, Cuenca-Buele S.Alvarado-Cabrero I, et al.Rev Med Inst Mex Seguro Soc. 2006 Sep-Oct;44(5):397-402.Rev Med Inst Mex Seguro Soc. 2006.PMID: 17207398Spanish.
Alvarado-Cabrero I, Valencia-Cedillo R.Alvarado-Cabrero I, et al.Rev Med Inst Mex Seguro Soc. 2015 Mar-Apr;53(2):206-13.Rev Med Inst Mex Seguro Soc. 2015.PMID: 25760750Spanish.