1. Greney H et al. (2000) Mol. Pharmacol. 57: 1142–1151
2. Regunathan S et al. (1996) J. Pharmacol. Exp. Ther. 276: 1272–1282
3. Morgan NG and Chan SL (2001) Curr. Pharmacol. Des. 7: 1413–1431
4. Mourtada M et al. (2000) Naunyn Schmiedeberg's Arch. Pharmacol. 361: 146–154
5. Olmos G et al. (1999) Br. J. Pharmacol. 127: 1317–1326