Erica Duarte-Silva

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Eosinophilic granuloma is a term reserved for the most often and benign form of disorder known as Langerhans cells histiocytosis. It is a disease of children and adolescents that very rarely affects adults, representing the localized form of a pathological proliferation of histiocytes in bones, like skull and long bones. Vertebral involvement is uncommon,(More)
Valeriana scandens presents perfect and pistillate flowers, the latter with sterile anthers. The species is composed of two varieties with different ploidy; V. scandens var. scandens (2n = 28) and V. scandens var. candolleana (2n = 56), both of which occur in RS, Brazil. Crosses between these varieties may give rise to hybrids with pollen sterility. In this(More)
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