In a 1986 issue of The Lancet, Bland-Altman published a paper that changed the way method comparison studies are conducted. In 1999, they published a follow-up document that extended their previous work to many different scenarios. They can be connected simultaneously via one or all of the methods below. Learn how to assess the consistency between two measurement methods. Contact us if you are having trouble registering. Sign in here to access free tools like favorites and notifications or to access personal subscriptions In this tutorial, you perform the following tasks: Some social magazines require you to create a personal profile and then activate your social account If you access transfer points through a university, library or employer , you log in here if you have access to the Journal through a company or association. , read the instructions below If you have access to a newspaper through a company or association affiliation, please flip through your association log, select an article to view it, and follow the instructions in that field. Access to the content of society newspapers varies according to titles. If you prefer, you can watch a video of this tutorial.