RT Journal Article SR Electronic T1 The long and winding road from silica exposure to silicosis and other health effects JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 157 OP 158 DO 10.1136/oem.60.3.157 VO 60 IS 3 A1 P Cocco YR 2003 UL http://oem.bmj.com/content/60/3/157.abstract AB