Cowden, J. M., Chisholm, D., O'Mahony, M., Lynch, D., Mawer, S. L., Spain, G. E., . . . Rowe, B. (1989). Two outbreaks of Salmonella enteritidis phage type 4 infection associated with the consumption of fresh shell-egg products. Cambridge University Press.

Cowden, J. M., D. Chisholm, M. O'Mahony, D. Lynch, S. L. Mawer, G. E. Spain, L. Ward, och B. Rowe. Two Outbreaks of Salmonella Enteritidis Phage Type 4 Infection Associated With the Consumption of Fresh Shell-egg Products. Cambridge University Press, 1989.

Cowden, J. M., et al. Two Outbreaks of Salmonella Enteritidis Phage Type 4 Infection Associated With the Consumption of Fresh Shell-egg Products. Cambridge University Press, 1989.