Psychometric qualities of the Brazilian versions of the Fagerström test for nicotine dependence and the heaviness of smoking index - Meneses-Gaya, Carolina de; Zuardi, Antonio Waldo; Azevedo Marques, João Mazzoncini de; Souza, Roberto M.; Loureiro, Sonia Regina; Crippa, José Alexandre de Souza (Nicotine and Tabacco Research, 2009)