%0 Journal Article %T Monoamine Oxidase A and B Gene Polymorphisms and Negative and Positive Symptoms in Schizophrenia %A Beatriz Camarena %A Ana Fresá %A n %A Alejandro Aguilar %A Raú %A l Escamilla %J ISRN Psychiatry %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/852949 %U http://dx.doi.org/10.5402/2012/852949