If you utilize the data created for this challenge in your research, please cite the following studies: 1. Gudhe, N.R., Behravan, H., Sudah, M. et al. (2022). Area-based breast percentage density estimation in mammograms using weight-adaptive multitask learning. Scientific Reports, 12, 12060. [DOI: 10.1038/s41598-022-16141-2] 2. Behravan, H., Gudhe, N.R., Okuma, H., & Mannermaa, A. (2023). Mammogram Density Assessment Dataset. Mendeley Data, V2. [DOI: 10.17632/tdx3h2fn9v.2] 3. Nguyen, H.T. et al. (2022). A large-scale benchmark dataset for computer-aided diagnosis in full-field digital mammography. [DOI: 10.1101/2022.03.07.22272009]