2 under baseline conditions , both adenosine and atp ( 3 mumol/kg ) administered as a rapid bolus injection into the right atrium , caused a transient ( less than 120 s ) prolongation of sinus cycle length ( scl ) of 128 +/- 25 ms and 439 +/- 31 ms respectively ( p less than 0.02 ) .
C0001443
adenosine
C0001480
atp