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Chagas disease is one of the main endemic illnesses in Latin America. Since 1969 up to the present, the treatment of chronic Chagas patients has been the object of a scientific-medical controversy mobilizing several bodies of knowledge and actors. The resolution of the controversy has direct effects on the health of patients; however, they have been systematically excluded of public debates. In this paper we identified and specified four different steps of the controversy, showing the different positions adopted by the actors implicated, analyzing their statements, the scientific knowledge mobilized during the debates and the consequences for the establishment of norms for the treatment. We conclude showing that what makes up the central issue of the controversy is not what the actors implicated explicitly state as it but the criteria (technical and cognitive) through which are measured and defined "illness" and "cure" states. This research is about a case study in Argentina.

The São Pedro Hospice was inaugurated on June 29, 1884, and it wa the first psychiatric hospital in Rio Grande do Sul State and one of the first of Brazil, whose history was in a turning point, and it became correlated with the construction of the psychiatry then province. This article presents an abbreviation history of the institution until the decade of 1920, it analyzes the data of the internal population. Moreover, it deals with the medical practices of attendance inside the hospice, which were combined with the development of the "cure" of the subjects, the precepts of the science and the physical and cultural attributes, as well as the experiences of the inpatients' life.

Arab scientists were various centuries ahead of our current knowledge of the curative power of hemp (Cannabis sativa L., Cannabaceae). Modern scientific literature ignores their contribution on the subject. We review in this paper the therapeutic uses of the plant in Arabic medicine from the 8th to the 18th century. Arab physicians knew and used its diuretic, anti-emetic, anti-epileptic, anti-inflammatory, pain-killing and antipyretic properties, among others.

All along the process of development of radiotherapy as a medical specialty, different controversies have emerged making dermatologists, gynecologists, ear, nose and throat specialists, and radiotherapists fight each other for the monopoly of the therapy based on radiation. In the present work we study an aspect of the negotiations that shaped up the therapeutical policy in the treatment of uterine myomas.