Towards standard methods for the detection of Cryptosporidium parvum on lettuce and raspberries. Part 2: Validation
N. Cook, C.A. Paton, N. Wilkinson, R.A.B. Nichols, K. Barker and H.V. Smith
International Journal of Food Microbiology, Volume 109, Issue 3 , 15 June 2006, Pages 222-228
2006