Imaging for early stage breast cancer

Why the difference btw RAPID and IRMA?

IRMA early analysis 983 pts, median FU 5 yr = 490 pts with 5 yr data RAPID interim analysis, 1108 pts with 3 yr morbidity (exploratory analysis)

Some RT data from RAPID, none from IRMA RAPID: measure of breast volume includes lung, sign more inhomogeneous dose in APBI pts Are breasts in Canada of same size as in Italy?