If an athletic trainer thinks the team physician is being too conservative about keeping injured athletes from playing in a crucial game, should the trainer allow the athletes to practice if they feel like it?

Which of the following is a sialylated Lewis blood group antigen associated with colorectal cancer?

A. CA 125 B. CA 15-3 C. PSA D. CA 19-9

When investigating a vendor, you should obtain information on pricing, quality, payment policies, and _______________, or availability of products, delivery time and procedures, and damaged-goods policy. 

Fill in the blank(s) with the appropriate word(s).