1. National Cancer Institute. Understanding Cancer. What is cancer ? 2021. Available from: https://www.cancer.gov/about-cancer/understanding/what-is-cancer
2. Supportive care needs of Iranian cancer patients
3. World Health Organization [WHO]. Cancer Reports. Heal. Top. 2022. Available from: https://www.who.int/news-room/fact-sheets/detail/cancer#:~:text=The problem-, Cancer is a leading cause of death worldwide%2C accounting for,lung (2.21 million cases)%3B
4. Cancer Control in Low- and Middle-Income Countries: Is It Time to Consider Screening?
5. Cancer statistics for the year 2020: An overview