| http://www.w3.org/ns/prov#value | - While use of a chest drain tube 82 may be necessary for a time following a surgical procedure such as a heart-valve replacement, once the drainage function is no longer required the separable portion 110 of the drain tube 82 may be removed from the base portion 100 and withdrawn from the chest cavity of the patient, leaving the base part 100 in place as a support member of reduced size attached to
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