TY  - JOUR
A1  - Atwill, E R
A1  - Pereira, M D
A1  - Alonso, L H
A1  - Elmi, C 
A1  - Epperson, W B
A1  - Smith, R 
A1  - Riggs, W 
A1  - Carpenter, L V
A1  - Dargatz, D A
A1  - Hoar, B 
T1  - Environmental load of <em>Cryptosporidium parvum</em> oocysts from cattle manure in feedlots from the central and western United States.
Y1  - 2006/01/
N1  - R828038
VL  - 35
IS  - 1
SP  - 200
EP  - 206
ER  -