CancerSupportSource®-15+: development and evaluation of a short form of a distress screening program for cancer patients and survivors. - Zaleta AK; McManus S; Fortune EE; DeRosa BW; Buzaglo JS; Olson JS; Goldberger S; Miller MF (Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer, 2021)