Is C-reactive protein associated with influenza A or B in primary care patients with influenza-like illness? A cross-sectional study. - Rystedt, Karin; Harbin, Nicolay Jonassen; Lindbaek, Morten; Radzeviciene, Ruta; Gunnarsson, Ronny; Eggertsen, Robert; C. Butler, Christopher; van der Velden, Alike W.; J. Verheij, Theo; Sundvall, Pär-Daniel (Scandinavian Journal of Primary Health Care, 2020)