求助英文文献一篇

meilin0118

题目：Clinical consequences of exposing pregnant gilts to strains of porcine reproductive and respiratory syndrome (PRRS) virus isolated from field cases of "atypical" PRRS.% K; C( X' x  q+ M% H
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Am J Vet Res. 1998 Dec;59(12):1540-4.6 p9 x- u$ P7 L2 ]1 H5 Z

6 M( e( [; _! [  C& P+ t# T. q# B# M链接：http://www.ncbi.nlm.nih.gov/pubmed/9858403