Authors: I Craft; M Ah-Moye; T Al-Shawaf; W Fiamanya; P Lewis; D Robertson; P Serhal; P Shrivastav; E Simons; P Brinsden Journal: Lancet Date: 1988-05-14 Impact factor: 79.321
Authors: M G Hull; H A Eddowes; U Fahy; M I Abuzeid; M S Mills; D J Cahill; C F Fleming; P G Wardle; W C Ford; A McDermott Journal: BMJ Date: 1992-06-06