From Anne Taylor-Vaisey: I wonder how much more can be written on this topic? Here's another article, from the November issue of Annals of Emergency Medicine:
Marco CA, Moskop JC, Solomon RC, Geiderman JM, Larkin GL. Gifts to physicians from the pharmaceutical industry: an ethical analysis. Ann Emerg Med 2006; 48(5):513-521. Link.
From me: Well, Anne, here's at least one more, from Canada.com: Doctors warned to back away from freebie buffet.