TY - JOUR T1 - Serum theophylline concentrations in general practice patients. JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 464 LP - 464 VL - 37 IS - 303 AU - A J Miller Y1 - 1987/10/01 UR - http://bjgp.org/content/37/303/464.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -