Al-Faham Zaid, LeBouf Ryan F, Nett Randall J
Department of Occupational and Environmental Medicine, West Virginia University, Morgantown, West Virginia.
Division of Respiratory Health, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, West Virginia.
Am J Ind Med. 2018 Jun;61(6):543-544. doi: 10.1002/ajim.22829. Epub 2018 Apr 14.