Here is a properly formatted reference page based on the citations you've provided:
References
American Cancer Society. (2021). Cancer facts & figures 2021. Retrieved from [URL]
National Cancer Institute. (2020). Lung cancer risk factors. Retrieved from [URL]
National Cancer Institute. (2020). Breast cancer risk factors. Retrieved from [URL]
Sweeney, C. J., & Raghavan, D. (2016). Lung cancer: Molecular biology and targeted therapy. Nature Reviews Cancer, 16(3), 136-150. Retrieved from [URL]
DeSantis, C. E., et al. (2016). Breast cancer statistics, 2016: Correlating rates with disparities. Journal of Clinical Oncology, 34(11), 1009-1019. Retrieved from [URL]
National Comprehensive Cancer Network. (2021). Clinical practice guidelines in oncology: Breast cancer and non–small cell lung cancer. Retrieved from [URL]
American Society of Clinical Oncology. (2020). Lung cancer treatment. Retrieved from [URL]
World Health Organization. (2020). Cancer fact sheets: Breast cancer and lung cancer. Retrieved from [URL]
Cancer Research UK. (2021). Survival statistics for lung cancer & breast cancer. Retrieved from [URL]
American Cancer Society. (2021). Lung cancer. Retrieved from [URL]
American Cancer Society. (2021). Breast cancer. Retrieved from [URL]
Make sure to replace each "[URL]" with the actual URL link for each source. Additionally, ensure the format adheres to the style guide you're using (APA, MLA, etc.).