Telehealth to support referral management in a universal health system: a before-and-after study oleh Sabrina Dalbosco Gadenz, Josué Basso, Patrícia Roberta Berithe Pedrosa de Oliviera, Stephan Sperling, Marcus Vinicius Dutra Zuanazzi, Gabriel Gausmann Oliveira, Ivonice Martins da Silva, Raphael Mendes Motta, Luana Gonçalves Gehres, Érica de Brito Mallmann, Átila Szczecinski Rodrigues, Daniela V Pachito, Beatriz de Faria Leao