[Assessment of drinking water quality in Avellino (Italy) by multivariate analysis].

The aim of this study was to assess the quality of the drinking water supply in the district of Avellino (Italy), by evaluating physico-chemical parameters and presence of contaminants. A multivariate approach was used to analyse data and to evaluate compliance to norms and standards. Study results indicate that statistical modeling is a powerful descriptive method to identify qualitative temporal trends in water quality and, if repeated in time, allows an evaluation of representativeness of the sampling points.

[Prognostic significance of cell-mediated immune response in patients with colorectal carcinoma. Preliminary results].

Pre-operative skin test response has been evaluated in 50 cases of colorectal carcinoma. Cellular defense's depression was correlated with tumoral staging (p = < 0.001).

[Idiopathic and torsion-induced omental infarct: case reports and a review of the literature].

The authors review nosologic problems related to the infarction of the greater omentum on the ground of two cases (one idiopathic, the other by torsion) recently observed. Omental infarction, far from being a real diagnostic or surgical problem, is an unusual cause of acute abdomen; resection of the affected omentum is curative in 100% of cases.