TY - JOUR T1 - Electronic instrumentation theory of cardiac technology JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 110 LP - 110 VL - 21 IS - 103 A2 - , Y1 - 1971/02/01 UR - http://bjgp.org/content/21/103/110.4.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -