ROTBERG, A. 1977. "N-factor/Anergic Margin" or resistance/susceptibility to hanseniasis I. The foundations of the theory. Hansenologia Internationalis: hanseníase e outras doenças infecciosas. 2, 2 (nov. 1977), 115–124. DOI:https://doi.org/10.47878/hi.1977.v2.36063.