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Ekerfelt, C., P. Forsberg, M. Svenvik, M. Roberg, S. Bergström, and J. Ernerudh. Asymptomatic Borrelia-seropositive Individuals Display the Same Incidence of Borrelia-specific Interferon-gamma (IFN-γ)-secreting Cells in Blood As Patients With Clinical Borrelia Infection. Blackwell Science Inc, 1999.

Ekerfelt, C., et al. Asymptomatic Borrelia-seropositive Individuals Display the Same Incidence of Borrelia-specific Interferon-gamma (IFN-γ)-secreting Cells in Blood As Patients With Clinical Borrelia Infection. Blackwell Science Inc, 1999.