Nutritional profile of schoolchildren from different socio-economic levels in Santiago, Chile.

Objective: To assess the nutritional status, food intake and physical activity patterns in schoolchildren attending 5th and 6th grade in basic schools from different socio-economic levels in the metropolitan region of Santiago.

Design: Cross-sectional study in children 5th and 6th grade of eighteen basic schools in the metropolitan region of Santiago.

Setting: Boys and girls aged 9-12 years from basic schools were evaluated in terms of physical capacity.

[Gravity drainage versus suction drainage: an experimental and clinical study].

The importance of wound drainage in casualty and plastic surgery is unquestioned. The most common form is suction drainage. This involves the disadvantage that the drain can become attached to the tissue by suction, stopping the flow and blocking the drain.