—Our faces are red! The sentence to which Dr Crislip refers is as follows: "A serum sample, obtained on admission but analyzed after the patient died by high-pressure liquid chromatography, disclosed a theophylline concentration of 80 mg/L." This represents not a scientific "first," but rather an age-old problem of overly enthusiastic editing! The authors are innocent. Our thanks to Dr Crislip for enlivening these editorial pages!— Ed.