Chalmers, R., Campbell, B., Crouch, N., & Davies, A. (2010). Clinical laboratory practices for detection and reporting of Cryptosporidium in community cases of diarrhoea in the United Kingdom, 2008. Eurosurveillance, 15(48), p. pii=19731. doi:10.2807/ese.15.48.19731-en

Chalmers, Rachel, Brian Campbell, N. Crouch, and Angharad Davies. "Clinical Laboratory Practices for Detection and Reporting of Cryptosporidium in Community Cases of Diarrhoea in the United Kingdom, 2008." Eurosurveillance 15, no. 48 (2010): pii=19731.

Chalmers, Rachel, Brian Campbell, N. Crouch, and Angharad Davies. "Clinical Laboratory Practices for Detection and Reporting of Cryptosporidium in Community Cases of Diarrhoea in the United Kingdom, 2008." Eurosurveillance 15.48 (2010): pii=19731.