Li T, Wang M. CLINICAL MANIFESTATIONS SEEMED MORE SEVERE AMONG PATIENTS WITH ANTIBODY 4-FOLD OR A GREATER INCREASE IN TITER BOTH AGAINST pH1N1 AND AGAINST SEASONAL INFLUENZA THAN THOSE WHOSE ANTIBODY 4-FOLD OR GREATER INCREASE IN TITER WAS ONLY AGAINST ONE TYPE OF SEASONAL INFLUENZA . Rev. Inst. Med. Trop. São Paulo. 2014;56(2):183-184. Accessed May 3, 2024. https://revistas.usp.br/rimtsp/article/view/78722