The evolutionary and clinical implilcations of the uneven distribution of the frequency of the inherited haemoglobin variants over short geographical distances - Premawardhena, A; Allen, A; Piel, FBJ; Fisher, C; Perera, L; Rodrigo, R; Goonathilaka, G; Ramees, L; Peto, T; Olivieri, N; Weatherall, DJ (British Journal of Haematology, 2016)