title: [The logic in scientific investigation].
authors.affiliation: Instituto Nacional de Cardiología Ignacio Chávez, México, D.F., México. Electronic address: alessandro.micheli@cardiologia.org.mx.
authors.forename: Alfredo
authors.initials: A
authors.lastname: de Micheli
mesh_terms: D035843:Biomedical Research; D008128:Logic