adding citation

README.md

@@ -68,6 +68,21 @@ Each released model folder under `models/` contains:
 - `train.csv`, `val.csv`, `test.csv`
 - `data/` with PNG files named by `FILE` column values
 
+## Citation
+
+If you use AbdCTBench, please cite:
+
+```bibtex
+@inproceedings{
+chaudhry2026abdctbench,
+title={Abd{CTB}ench: Learning Clinical Biomarker Representations from Abdominal Surface Geometry},
+author={Muhammad Ahmed Chaudhry and Suhana Bedi and Pola Lydia Lagari and Brian T Layden and William Galanter and Ayis Pyrros and Sanmi Koyejo},
+booktitle={The Fourteenth International Conference on Learning Representations},
+year={2026},
+url={https://openreview.net/forum?id=dKRAo0a9Gm}
+}
+```
+
 ---
 
 For detailed internals and full argument descriptions, see `code/README.md`.