Recruitment methods in Alzheimer´s disease research: general practice versus population based screening by mail

: Andersen F, Engstad T A, Straume B, Viitanen M, Halvorsen D S, Hykkerud S, Sjøbrend K

: 2010

 BMC Medical Research Methodology

: 35

: 10

: 7

: 1471-2288

DOI: https://doi.org/10.1186/1471-2288-10-35