TY - JOUR T1 - The Various Inclinations of the Electrical Axis of the Human Heart. Part I.--The Normal Heart JF - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934) VL - 86 IS - 590 SP - 507 EP - 526 PY - 1913/07/30/ UR - http://dx.doi.org/10.1098/rspb.1913.0047 M3 - doi:10.1098/rspb.1913.0047 AU - Waller, A. ER -