1. From the Department of Medical Imaging, Radboud University Medical Center, Geert Grooteplein 10, 6525 GA, Post 766, Nijmegen, the Netherlands (M.C.P., R.M.M., I.S.); ScreenPoint Medical, Nijmegen, the Netherlands (A.R.R.); Cancer Registry of Norway, Oslo, Norway (K.P., S.H.); Siemens Healthcare, Forchheim, Germany (J.W., S.K.); Department of Radiology, the Netherlands Cancer Institute, Amsterdam, the Netherlands (R.M.M.); and the Dutch Expert Centre for Screening, Nijmegen, the Netherlands (I.S.).