Authors: C Catassi; I M Rätsch; E Fabiani; M Rossini; F Bordicchia; F Candela; G V Coppa; P L Giorgi Journal: Lancet Date: 1994-01-22 Impact factor: 79.321
Authors: W G Paterson; W G Thompson; S J Vanner; T R Faloon; W W Rosser; R W Birtwhistle; J L Morse; T A Touzel Journal: CMAJ Date: 1999-07-27 Impact factor: 8.262