Collaborative networks and thematic trends of research on the application of complementary and alternative medicine in cancer patients: A bibliometric analysis.

•The USA dominates the literature related to CAM in cancer patients, followed by Germany, Canada, UK, China.•Keywords co-occurrence analysis indicated that the research hotspots around the world formed five clusters.•Breast cancer is the most concerned type of cancer, and the focus on other types of cancer varies from country to country.•Research content mainly includes symptom management, website information management, evidence-based information support, etc.