“…1,2 The first formal scientific meeting of ABN was held in the city of Curitiba, Paraná, in 1963, from June 30 to July 5, at the rectory of the Federal University of Paraná. 4 Overall, 103 scientific papers were presented, predominantly from the medical schools of São Paulo and Rio de Janeiro. 4 The first official board of ABN included professors Adherbal Tolosa, as president; Paulo Pinto Pupo, as secretary; and Horácio Martins Canelas, as treasurer.…”