000 00299nam a2200121Ia 4500
008 240420s9999||||xx |||||||||||||| ||und||
020 _a9781873839294
100 _aColquhoun, Michael C.
_976973
245 0 _aEcgs Explained
260 _bMagister Consulting
_c2000
300 _a128p.
942 _cBK
999 _c215501
_d215501