NIH:10.2460/ajvr.68.3.313
NIH:10.2460/ajvr.71.12.1432
NIH:10.2460/ajvr.2000.61.1241
NIH:10.2460/ajvr.2001.62.1212
NIH:10.2460/ajvr.2001.62.1658
NIH:10.2460/javma.228.11.1718
NIH:10.2460/javma.230.2.233
NIH:10.2460/javma.230.12.1798
NIH:10.2460/javma.233.2.259
NIH:10.2460/javma.235.7.827
NIH:10.2460/javma.242.11.1539
NIH:10.2460/javma.2002.221.411
NIH:10.2460/javma.2003.223.445