Since chest tubes have been routinely used to drain the pleural space, particularly after lung surgery, the management of chest tubes is considered to be essential for the thoracic surgeon. The pleural drainage system requires effective drainage, suction, and water-sealing.
1 The Passport Card can be used on cruises to the Caribbean and Bermuda, in addition to land border crossings to Canada and Mexico.  The US State Department started accepting applications for the Passport Card on February 1st, 2008.
Passport cards are valid for all land-based border crossings into Canada from the United States, including those made by train. In fact, passport cards were designed with border communities in mind, in which people may need to move between Canada and the United States on a regular basis.