R Peters, N Beckett, M Geneva, M Tzekova, F. H Lu, R Poulter, N Gainsborough, B Williams, M. C de Vernejoul, A Fletcher and C. Bulpitt
Age and Ageing 38 ( 5 ): 521 - 527 , 2009
R Peters, N Beckett, L Burch, M. C de Vernejoul, L Liu, J Duggan, C Swift, B Gil Extremera, A Fletcher and C. Bulpitt
Age and Ageing 39 ( 5 ): 609 - 616 , 2010