Bulpitt, CJ; Peters, R; Staessen, JA; Thijs, L; de Vernejoul, MC; Fletcher, AE; Beckett, NS; (2006) Fracture risk and the use of a diuretic (indapamide sr) +/- perindopril: a substudy of the Hypertension in the Very Elderly Trial (HYVET). Trials, 7. ISSN 1745-6215 DOI: https://doi.org/10.1186/1745-6215-7-33

Carless, PA; Henry, DA; Carson, JL; Hebert, PPC; McClelland, B; Ker, K; (2010) Transfusion thresholds and other strategies for guiding allogeneic red blood cell transfusion. The Cochrane database of systematic reviews (10). ISSN 1469-493X https://researchonline.lshtm.ac.uk/id/eprint/2481