5Dedman D, H Laurichesse, EO Caul, et al. Surveillance of small round structured virus (SRSV) infection in England and Wales, 1990 - 95 [ J ]. Epidemiol Infect, 1998,121 : 139 - 149.
6Jiang X, PW Huang, WM Zhong, et al. Design and evaluation of a primer pair that detects both norwalk - and sapporo - like caliciviruses by RT - PCR[ J]. J Virol Methods, 1999,83( 1 -2) :145 - 154.
7Kaplan JE, RA Goodman, LB Schonberger, et al. Gastroenteritis due to norwalk virus: an outbreak associated with a municipal water system [J]. J Infect Dis,1982,146(2) :190 - 197.
8United Nations Development Programme (UNDP). Capacity Assessment and Development in a Systems and Strategic Management Context. 1998.