Multicenter Study

Allodynia in migraine: association with comorbid pain conditions.

Headache. 2009 Oct 1;49(9):1333-44.
Comparative Study

Pain associated with specific anxiety and depressive disorders in a nationally representative population sample.

Soc Psychiatry Psychiatr Epidemiol. 2010 Jan 1;45(1):89-104.
Article

Socioeconomic status and bone health in community-dwelling older men: the CHAMP Study.

Osteoporos Int. 2011 May 1;22(5):1343-53.