835 / 1228
(1974) NCRP Report 41
(1983) French Cmte on ionizing Radiation Measurements
(1984) British Cmte on Radiation Units and Measurements
(1985) ICRU Report 38: Dose and volume specification for reporting intracavitary therapy in gynecology
(1987) AAPM TG-32: Specification of brachytherapy source strength
(1997) ICRU Report 58: Dose and volume specification for reporting interstitial brachytherapy
(2004) ESTRO Booklet 8: A practical guide to quality control of brachytherapy equipment
etc., etc., etc.
ICRU, GEC-ESTRO, and AAPM explicitly
recommend against
A
app