00414nam a2200145Ia 450000500170000000800410001702000180005804000100007605000240008610000230011024500690013325000080020226000330021065000250024320251116210914.0251116s9999    xx            000 0 und d  a9780340946886  cEULIB  aRC 683 5 E5H68 2008  aHoughton, Andrew R 0aMaking sense  of the ECGb a hands- on guide.cHoughton Andrew R  a3rd  aLondonb Hodder Arnoldc2008  aElectrocardiography