1. Incidence, clinical patterns, and outcomes of primary sclerosing cholangitis in South Wales, United Kingdom 
Jeremy G.C Kingham, Narendra Kochar, Michael B Gravenor 
Gastroenterology 
Volume 126, Issue 7, Pages (June 2004)
DOI: /j.gastro

2. Figure 1
Transplant-free survival of Swansea residents following diagnosis of PSC (n = 53) compared with age- and sex-matched controls from the Wales population. Kaplan-Meier survival function calculated using the R statistical system. Expected survival of Wales population was inferred from age- and sex-specific mortality rates in the most recent published census.
Gastroenterology  , DOI: ( /j.gastro )