Update README.md

added citation to main paper

Author: ccosmin97

README.md

@@ -13,7 +13,7 @@
 ## Introduction
 
 <div style="text-align: justify; width: 100%;">
-This repository presents an auto-contouring algorithm [??] segmenting the entire heart, including its chambers and coronary arteries. This algorithm was trained on 560 thoracic planning computed tomography (CT) scans from Brigham and Women’s Hospital/Dana-Farber Cancer Institute and internally validated on 70 additional cases. External validation was conducted on 283 patients with lung or breast cancer treated at Cedars-Sinai Medical Center (2005-2020). This auto-contouring algorithm segments the whole heart, the heart chambers (LA, LV, RA, RV) and the heart coronaries (LAD, LCX, LM, PDA, RCA). </div> 
+This repository presents an auto-contouring algorithm [1] segmenting the entire heart, including its chambers and coronary arteries. This algorithm was trained on 560 thoracic planning computed tomography (CT) scans from Brigham and Women’s Hospital/Dana-Farber Cancer Institute and internally validated on 70 additional cases. External validation was conducted on 283 patients with lung or breast cancer treated at Cedars-Sinai Medical Center (2005-2020). This auto-contouring algorithm segments the whole heart, the heart chambers (LA, LV, RA, RV) and the heart coronaries (LAD, LCX, LM, PDA, RCA). </div> 
 
 Please refer to [modelLabels.csv](ROCardS/data/labels/modelLabels.csv) for additional details on the algorithm segments. 
 
@@ -300,6 +300,8 @@ If you have any question regarding this work, or any suggestions towards improve
 
 ## References
 
-[1] main paper ref
+[1] Guthier C. *et al.* Clinical Validation and Prospective Deployment of an Automated Deep
+  Learning-Based Coronary Segmentation and Cardiac Toxicity Risk Prediction
+  System.
 
 [3] Fedorov A. *et al.* NCI Imaging Data Commons. Cancer Res. 81, 4188–4193 (2021).