change USA to United States
@@ -28,7 +28,7 @@ affiliations:
index: 2
- name: Department of Physics and Astronomy, Virginia University, Morgantown, WV, United States
index: 3
- - name: Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
+ - name: Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, United States
index: 4
- name: Politecnico di Milano, Milano, Italy
index: 5
