Ireland, Robert S. (eds) (2010). Advanced dental nursing (ed. ke-2). Chichester, U.K.: Wiley-Blackwell. m/s. 58. ISBN9781405192675. Dicapai pada 19 Jun 2016.CS1 maint: extra text: authors list (link)
Johnson, T; Gerson, L; Hershcovici, T; Stave, C; Fass, R (Mac 2010). "Systematic review: the effects of carbonated beverages on gastro-oesophageal reflux disease". Alimentary pharmacology & therapeutics. 31 (6): 607–14. doi:10.1111/j.1365-2036.2010.04232.x. PMID20055784.
Coggrave, M; Norton, C; Cody, JD (13 Januari 2014). "Management of faecal incontinence and constipation in adults with central neurological diseases". The Cochrane database of systematic reviews (1): CD002115. doi:10.1002/14651858.CD002115.pub5. PMID24420006.
Johnson, T; Gerson, L; Hershcovici, T; Stave, C; Fass, R (Mac 2010). "Systematic review: the effects of carbonated beverages on gastro-oesophageal reflux disease". Alimentary pharmacology & therapeutics. 31 (6): 607–14. doi:10.1111/j.1365-2036.2010.04232.x. PMID20055784.
Coggrave, M; Norton, C; Cody, JD (13 Januari 2014). "Management of faecal incontinence and constipation in adults with central neurological diseases". The Cochrane database of systematic reviews (1): CD002115. doi:10.1002/14651858.CD002115.pub5. PMID24420006.