| Authors: |
Howe RJ; VA Providence Healthcare System, Providence, Rhode Island, USA.; Warren Alpert School of Medicine at Brown University, Providence, Rhode Island, USA., Madrigal C; VA Boston Healthcare System, Boston, Massachusetts, USA., Nothern A; VA Boston Healthcare System, Boston, Massachusetts, USA., Makela MJ; VA Boston Healthcare System, Boston, Massachusetts, USA., Sullivan JL; VA Providence Healthcare System, Providence, Rhode Island, USA.; Brown University School of Public Health, Providence, Rhode Island, USA., Harris DA; VA Providence Healthcare System, Providence, Rhode Island, USA.; Department of Epidemiology, College of Health Sciences, University of Delaware, Newark, Delaware, USA., Barber M; VA Providence Healthcare System, Providence, Rhode Island, USA., Halladay C; VA Providence Healthcare System, Providence, Rhode Island, USA., Rudolph JL; VA Providence Healthcare System, Providence, Rhode Island, USA.; Warren Alpert School of Medicine at Brown University, Providence, Rhode Island, USA., Driver JA; VA Boston Healthcare System, Boston, Massachusetts, USA.; Harvard Medical School, Boston, Massachusetts, USA. |