The digoxin concentration: before and after the fact.
D000368:Aged; D004077:Digoxin / Q000097:blood / Q000627:therapeutic use / Q000633:toxicity*; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged
D004077:Digoxin