TY - JOUR T1 - The effect of theophylline and other methylxanthines on presynaptic inhibition of the longitudinal smooth muscle of the guinea pig ileum induced by purine nucleotides. JF - Journal of Pharmacology and Experimental Therapeutics JO - J Pharmacol Exp Ther SP - 704 LP - 709 VL - 215 IS - 3 AU - F K Okwuasaba AU - M A Cook Y1 - 1980/12/01 UR - http://jpet.aspetjournals.org/content/215/3/704.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -