CD40 ligand enhances prostaglandin E2 and thromboxane A2 by stimulating cyclooxygenase-2 in endothelial cells Christoph D. Garlichs, Alexander Schmeisser, Tobias Geis, Saeed Eskafi, Heike Kloos, Margarete Goppelt-Struebe, Josef Ludwig, Werner G. Daniel. University Erlangen-Nuremberg, Clinic of Internal Medicine II, Erlangen, Germany