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eNAL: an
extension of the NAL
setup correction protocol
for effective use of once-a-week follow-up measurements.
(
de Boer, Heijmen, IJROBP, 2007)
Aims eNAL:
eNAL
Challenge: coping with the unknown random component (“noise”)
in the single weekly follow-up measurements
-
effectively and efficiently reduce systematic set-up errors
-
also in case of time trends or sudden changes