From ignorance to evidence? The use of programme evaluation in conservation: Evidence from a Delphi survey of conservation experts.

Persistent gaps in the evidence base regarding the performance of conservation policies has put pressure on the conservation policy field to adopt 'best practice' programme evaluation methods. These are methods that account for the counterfactual and are able to attribute causality between a conservation policy and specific observable environmental and social impacts. Despite this pressure, use of such methods continues to be rare.

[Involvement of the posterior eye segment in HLA B27(+) iridocyclitis. Incidence. Value of surgical treatment].

46 patients with the association of acute anterior uveitis and the presence of HLA B27 antigen were studied. Ankylosing spondylitis was found in 19 patients (41.3%).