M. Dalla Chiesa, R. Passalacqua, and M. Michiara, et al., “Tamoxifen vs Tamoxifen plus 13-cis-retinoic acid vs Tamoxifen plus Interferon a–2a as first-line endocrine treatments in advanced breast cancer: updated results of a phase II, prospective, randomised multicentre trial”, Acta Biomed, vol. 78, no. 3, pp. 204–209, Dec. 2007, Accessed: Jul. 27, 2024. [Online]. Available: https://mattioli1885journals.com/index.php/actabiomedica/article/view/1903