Costantini, V., Lewis, P., Alsop, J., Templeton, C., & Saif, L. J. (2003). Respiratory and fecal shedding of Porcine respiratory coronavirus (PRCV) in sentinel weaned pigs and sequence of the partial S-gene of the PRCV isolates. Arch Virol.

Costantini, V., P. Lewis, J. Alsop, C. Templeton, و L. J. Saif. "Respiratory and Fecal Shedding of Porcine Respiratory Coronavirus (PRCV) in Sentinel Weaned Pigs and Sequence of the Partial S-gene of the PRCV Isolates." Arch Virol 2003.

Costantini, V., et al. "Respiratory and Fecal Shedding of Porcine Respiratory Coronavirus (PRCV) in Sentinel Weaned Pigs and Sequence of the Partial S-gene of the PRCV Isolates." Arch Virol 2003.