CLINICAL EPIDEMIOLOGY: THE ESSENTIALS

Por Barker, William H.
Publicado em 1984

Continuous symmetry : from Euclid to Klein /

Por Barker, William H., Howe, Roger.
Publicado em c200

Major Depression and Emergency Medical Services Utilization in Community-Dwelling Elderly Persons with Disabilities

Por Lee, Benjamin W., Conwell, Yeates, Shah, Manish N., Barker, William H., Delavan, Rachel L., Friedman, Bruce
Publicado em 2008