Preventive Medicine
Preventive Medicine > 2001 > 33 > 6 > 536-542
Preventive Medicine > 2004 > 38 > Supplement > 24-33
Preventive Medicine > 2008 > 47 > 3 > 284-288
Preventive Medicine > 2001 > 33 > 6 > 536-542
Preventive Medicine > 2004 > 38 > Supplement > 24-33
Preventive Medicine > 2008 > 47 > 3 > 284-288