1. A basis for distinguishing two types of purinergic receptor;Burnstock,1978
2. The affinity of various purine nucleosides for adenosine receptors on purified myenteric varicosities compared with their efficacy as presynaptic inhibitors of acetylcholine release;Christofi;J. Pharmacol. Exp. Ther.,1986
3. Possible heterogeneity of adenosine receptors on myenteric nerve endings;Christofi;J. Pharmacol. Exp. Ther.,1987
4. Interactions between purinergic and cholinergic messages in the myenteric plexus of guinea-pig small intestine;Christofi;Gastroenterology,1989
5. Adenosine receptors are negatively coupled to release of tachykinin(s) from enteric nerve endings;Christofi;J. Pharmacol. Exp. Ther.,1990