TY - JOUR AU - Ayatollahi, Ahmad AU - Sabzpooshan, S. H. TI - An Improved Method for Adaptive Noise Cancellation of ECG Signals in very Difficult Conditions JO - Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran VL - 1 IS - 1 SP - 45 EP - 47 PY - 2003 DO - ER -