RT Journal Article SR Electronic T1 An evaluation of unmedicated chewing gum in the prophylaxis of infections in children. JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 61 OP 62 VO 22 IS 114 A1 Ripley, G. D. YR 1972 UL http://bjgp.org/content/22/114/61.abstract AB