Secretariat
== Summary == {{Information |Description = HR B 76 YRS two day's later on B blocker |Category = |Source = W.G. de Voogt, MD, PhD, SLAZ, The Netherlands |Date = 2011 |Author = W.G. de Voogt, MD, PhD, SLAZ, The Netherlands |Permission = {{by-nc-sa-3.0}} |o
