1.1 Literature search strategy
Computer searched databases such as CNKI, Wanfang, VIP, China Biomedical Database, Web of Science, CBM, CINAHL, Theses-A&I, PubMed, and Clinical Trials.gov website. The search terms include different subject words and free words, among which the Chinese search terms include ”breast cancer”, ”surgical treatment”, ”chemotherapy”, ”radiotherapy”, ”breast tumor”, ”self-management”, ”qualitative research” etc., the English search terms include ”Mammary cancer”, ”Breast cancer”, ”Chemotherapy”, ”Radiotherapy”, ”Breast tumor”, ”Self-management”, ”Qualitative research”, etc., and the literature search time range is January 2010 Until December 2022. When conducting literature search on CNKI and CINAHL databases, the search strategy is shown in Figure 1.