Foreword.
Hector O
HO
Ventura
D001291:Attitude of Health Personnel; D006328:Cardiac Catheterization / Q000379:methods* / Q000592:standards; D002983:Clinical Competence; D006801:Humans; D011364:Professional Practice / Q000706:statistics & numerical data / Q000639:trends; D017534:Radial Artery; D014481:United States