Effect of caffeine on adenosine-induced heart block in guinea pigs.
D000227:Adenine Nucleotides; D000818:Animals; D002110:Caffeine / Q000494:pharmacology*; D002118:Calcium / Q000378:metabolism; D006168:Guinea Pigs; D006327:Heart Block / Q000139:chemically induced*; D008297:Male; D009705:Nucleosides
D000227:Adenine Nucleotides; D009705:Nucleosides; D002110:Caffeine; D002118:Calcium