the effects on sensitivity to ach of dibutyryl camp ( 1.25 mm ) , monobutyryl camp ( 0.25 mm ) , and camp ( 2.5 mm ) in ca++ -free solution are a function of whether the experiment is an initial one on that preparation or a repeat experiment after 10 or more minutes of perfusion flow .
C0012054
dibutyryl camp
C0001455
camp