the mean digitoxin concentration was 24.0 +/- 10.3 ng/ml ( 0 to 45 ng/ml ) and correlated poorly with patient compliance ( r = 0.36 ) , serum potassium ( r = 0.24 ) , weight ( r = 0.17 ) and digitoxin dose ( r = 0.13 ) , but not with ecg and subjective or clinical findings .
C0005910
weight
C0037088
clinical findings