Large-scale, prospective, observational studies in patients with psoriasis and psoriatic arthritis: A systematic and critical review

<p>Abstract</p> <p>Background</p> <p>Observational studies, if conducted appropriately, play an important role in the decision-making process providing invaluable information on effectiveness, patient-reported outcomes and costs in a real-world environment. We conducted...

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Bibliographic Details
Main Authors: Goertz Hans-Peter, Langham Julia, Langham Sue, Ratcliffe Mark
Format: Article
Language:English
Published: BMC 2011-03-01
Series:BMC Medical Research Methodology
Online Access:http://www.biomedcentral.com/1471-2288/11/32