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Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and
Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ...
Heavy fuel droplets separate as they flow around an abrupt bend in an intake manifold.
Thoracic cage. Avoid heavy pressure over the sternum and xiphoid process; caution over rib cage.
The popliteal area. Avoid heavy pressure over the back of the knee joint.
Good body mechanics for lifting heavy objects.