RT Journal Article SR Electronic T1 Saharan dust: no reason to exempt from science or policy JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 389 OP 390 DO 10.1136/oem.2010.063990 VO 68 IS 6 A1 Laura Perez A1 Nino Künzli YR 2011 UL http://oem.bmj.com/content/68/6/389.abstract AB