Unexpected hospitalization due to treatment-related toxicities in older cancer patients on systemic anti-cancer treatment: Development of a simple predictive tool. (December 2021) - Chan, W.L.; Tsoi, W.L.; Cheng, H.F.M.; Yik, S.L.T.; Wu, T.K.; Kwok, G.; Ho, Y.H.T.; Choi, H.C.W.; Kwong, D.; Yuen, K.K.