Waller, M L Estimating periods of non-close-contact for relatives of radioactive patients. [electronic resource] - The British journal of radiology Jan 2001 - 100-2 p. digital Publication Type: Comment; Letter ISSN: 0007-1285 Standard No.: 10.1259/bjr.74.877.740100 doi Subjects--Topical Terms: Brachytherapy--adverse effectsEnvironmental Exposure--prevention & controlHumansModels, BiologicalRadiation DosageRadiation Protection--methods