| http://www.w3.org/ns/prov#value | - Additionally, catheters are typically sold as ???sets??? or ???trays.??? A set may include the basics a physician would need to place the catheter, including a needle, syringe, guide wire, scalpel, and catheter, whereas a tray would include all that is in a set plus any dressing, drapes, drugs or fluids required.
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