My research interests have always been linked to G protein-coupled receptors (GPCRs). In particular the molecular mechanisms of drug action are at the core of my research 'business'. One cannot study all (800?) GPCRs at the time, so my main attention is focussed on adenosine receptors. Every now and then I allow myself to diverge a little bit, lately to study nicotinic acid and chemokine CCR2 receptors. All this has led to a scientific 'output' of over 260 articles, quite a few reviews and book chapters, a dozen or so patents, and some 20 accepted PhD theses. You will find references to recent work at this website.