In mid-January I had a routine check-up, and I had my blood drawn for testing ahead of time.

On the day of my check up, I was running late, so, when I got to the cancer cen­ter, I just rushed up to the unit clerk’s desk to check in.  To my sur­prise, the clerk handed me a requisition for another blood draw, but with no tests specified.

Startled, I quickly went down to the lab area.  It turned out that I had signed up for a clinical study at the time of …