title: Differential formation of a bioactive antiaggregating substance (BAS) by layers of the vein wall.
authors.affiliation: 'Mariano R. Castex', Academia Nacional de Medicina., Capital Federal, Argentina.
authors.forename: E I
authors.initials: EI
authors.lastname: Bermejo
authors.forename: A C
authors.initials: AC
authors.lastname: Kempfer
authors.forename: M
authors.initials: M
authors.lastname: Narbaitz
authors.forename: J P
authors.initials: JP
authors.lastname: Frontroth
authors.forename: M A
authors.initials: MA
authors.lastname: Lazzari