Lack of reactivity of paracoccidioidomycosis sera in the double immunodiffusion test with gp 43 antigen: report of two cases - Del Negro, G M B; Bernard, G; Assis, C M; Vidal, M S M; Garcia, N M; Otani, C; Shikanai Yasuda, Maria Aparecida; Lacaz, Carlos da Silva (Journal of Medical and Veterinary Mycology, 1995)