Andrea Nelken

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An immunohistological analysis with a panel of monoclonal and polyclonal antibodies was performed in 20 cases of squamous cell carcinoma originating in the oral cavity, oropharynx and larynx. The epithelial antigens were detected in all cases with variable patterns of positivity: cytokeratins and epithelial membrane antigen were positive in a high number of(More)
Vasculitides are a group of syndromes marked by inflammation and necrosis of blood vessels of various calibres, with luminal impairment and ischemiainduced changes in the tissues supplied (Hunder et al, 1996; Rao et al, 1998; Jennette et al, 1994). Vasculitis was first recognised as a disease in 1801 when Heberden described a case in a fiveyear-old child.(More)
The results of a clinical experiment with a new synthetic prostaglandin for the prevention of gastric lesions induced by NSAID: the misoprostol have reported. Twenty patients were treated with this drug and the results were compared to those obtained with the use of ranitidine in the same number of patients. The clinical experiment showed an excellent(More)
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