RT Journal Article SR Electronic T1 Regulation of P2Y1 receptor-mediated signaling by the ecto-nucleoside triphosphate diphosphohydrolase isozymes NTPDase1 and NTPDase2 JF Molecular Pharmacology JO Mol Pharmacol FD American Society for Pharmacology and Experimental Therapeutics DO 10.1124/mol.104.006908 A1 Claudia P. Alvarado-Castillo A1 T. Kendall Harden A1 Jose L. Boyer YR 2004 UL http://molpharm.aspetjournals.org/content/early/2004/10/20/mol.104.006908.abstract AB