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Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu
Subcutaneous drug administration: (a) cross section of skin showing depth of needle insertion;
A typical lubrication system, showing the oil pan, oil pump, oil filter, and oil passages.
A high-performance aftermarket air filter often can increase airflow into the engine for more ...
Model of how direct repeats generated during the insertion of a transposon or an insertion sequence
The insertion of a DNA transposon