Urinary fluoride output in children following the use of a dual-fluoride varnish formulation - Olympio, Kelly Polido Kaneshiro; Cardoso, Vanessa Eid da Silva; Bijella, Maria Fernanda Borro; Pessan, Juliano Pelim; Delbem, Alberto Carlos Botazzo; Buzalaf, Marília Afonso Rabelo (Journal of Applied Oral Science, 2009)