Journal article
Should postal epidemiological studies stop doing third mailings?
AM Elliott, PH Hannaford, J SIMPSON, M Warskyj, S Ferry, V Owen-Smith
The European Journal of General Practice | Published : 2001
Journal article
AM Elliott, PH Hannaford, J SIMPSON, M Warskyj, S Ferry, V Owen-Smith
The European Journal of General Practice | Published : 2001