RT Journal Article SR Electronic T1 Epidemic Winter Vomiting in a General Practice JF The Journal of the College of General Practitioners JO J Coll Gen Pract FD British Journal of General Practice SP 99 OP 102 VO 9 IS 1 A1 E. J. Hopkins YR 1965 UL http://bjgp.org/content/9/1/99.abstract AB