Ford, E.,
Nicholson, A.,
Koeling, R.,
Tate, A. R.,
Carroll, J.,
Axelrod, L.,
Smith, H. E.,
Rait, G.,
Davies, K. A.,
Petersen, I.,
Williams, T. &
Cassell, J. A.,
21/08/2013,
In: BMC Medical Research Methodology. 13,
1,
p. 105Research output: Contribution to Journal/Magazine › Journal article › peer-review