Systematic Review of Respiratory Health Among Dairy Workers - Stephen J. Reynolds; Matthew W. Nonnenmann; Ioannis Basinas; Margaret Davidson; Lena Elfman; John Gordon; Shelley Kirychuck; Sue Reed; Joshua W. Schaeffer; Marc B. Schenker; Vivi Schlünssen; Torben Sigsgaard (Journal of Agromedicine, 2013)