Aberrant IgG subclass distribution to measles in healthy seropositive individuals, in patients with SSPE and in immunoglobulin-deficient patients. - Mathiesen, T.; Hammarström, L.; Fridell, E.; Linde, A.; Wirsen, G.; Smith, C. I. E.; Norrby, E.; Wahren, B. (Clinical & Experimental Immunology, 1990)