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. Author manuscript; available in PMC: 2024 May 28.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Mar 15;100(4):926–944. doi: 10.1016/j.ijrobp.2017.12.261

Fig. 1.

Fig. 1.

Proposed treatment algorithm for locally advanced rectal cancer in elderly/comorbid patients. Abbreviations: 5-FU = 5-fluorouracil; ADLs = activities of daily living; cCR = clinical complete response; CGA = comprehensive geriatric assessment; CIRS-G = Cumulative Illness Rating Scale–Geriatric; CRM = circumferential resection margins; CRT = chemoradiation; EBRT = external beam radiation therapy; DRE = digital rectal examination; ERUS = endorectal ultrasound; IADLs = instrumental activities of daily living; MGA = multidimensional geriatric assessment; RT = radiation therapy.