Authors: A E Russell; S A Smith; M J West; P E Aylward; R J McRitchie; R M Hassam; R B Minson; L M Wing; J P Chalmers Journal: Br Heart J Date: 1990-03
Authors: S J Barker; K K Tremper; J Hyatt; J Zaccari; H A Heitzmann; B M Holman; K Pike; L S Ring; M Teope; T B Thaure Journal: J Clin Monit Date: 1987-01