In this task, you are given a sentence in the English language. Your job is to translate the English sentence into the Spanish language.

[EX Q]: Among the causes of upper gastrointestinal bleeding not secondary to portal hypertension is NOT found
[EX A]: Entre las causas de hemorragia digestiva alta no secundaria a hipertensión portal NO se encuentra

[EX Q]: The structural units responsible for the characteristic reactions of a molecule are
[EX A]: Las unidades estructurales responsables de las reacciones características de una molécula son

[EX Q]: What characterizes the Münchausen syndrome ?
[EX A]:
¿Qué caracteriza el síndrome de Münchausen?