Loss of tolerance 5 days after discontinuing sulphonamide introduced via desensitization in delayed reaction - Pereira, Amanda Rocha Firmino; Aun, Marcelo Vivolo; Kelmann, Nathalia Coelho Portilho; Motta, Antonio Abilio; Kalil Filho, Jorge Elias; Giavina-Bianchi Júnior, Pedro Francisco (Einstein-sao paulo, 2020)