Authors: B T Colvin; S J Machin; T W Barrowcliffe; M Greaves; C A Ludlam; I J Mackie; F E Preston; P E Rose; I D Walker; A H Waters Journal: J Clin Pathol Date: 1993-12 Impact factor: 3.411
Authors: Jennifer Hollowell; Ana Ruigómez; Saga Johansson; Mari-Ann Wallander; Luis Alberto García-Rodríguez Journal: Br J Gen Pract Date: 2003-04 Impact factor: 5.386