今年もあります。http://www.my-pharm.ac.jp/~somu/openc/

Shashank Rohatagi, Helen Kastrissios, Kunihiro Sasahara, Kenneth Truitt, James B. Moberly, Russell Wada & Daniel E. Salazar (2008), "Pain relief model for a COX-2 inhibitor in patients with postoperative dental pain" USD39