JOURNAL OF IMMUNOTHERAPY, vol. 34, no. 3, page. 297 - 306, 2011-04
JOURNAL OF GENERAL VIROLOGY, vol. 83, page. 2765 - 2772, 2002-11
VACCINE, vol. 17, no. 5, page. 490 - 496, 1999-02-05
JOURNAL OF VIROLOGY, vol. 72, no. 4, page. 3060 - 3065, 1998-04
JOURNAL OF VIROLOGY, vol. 67, no. 4, page. 2317 - 2326, 1993-04