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International Archives of Occupational and Environmental Health > 2008 > 81 > 5 > 535-543
International Archives of Occupational and Environmental Health > 2008 > 81 > 5 > 625-632
Osteoporosis International > 2005 > 16 > 3 > 280-288
Somnologie > 2001 > 5 > 3 > 115-120
Digestive Diseases and Sciences > 1998 > 43 > 8 > 1646-1651