title: Size matters.
authors.affiliation: Professor of Clinical Radiology (Physics) (in Medicine), Departments of Radiology and Medicine, Columbia University, New York City, NY.
authors.forename: Stephen
authors.initials: S
authors.lastname: Balter
mesh_terms: D006328:Cardiac Catheterization / Q000592:standards*; D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection / Q000592:standards*; D015641:Radiography, Interventional / Q000592:standards*