Fahlman, Mariane M Mucosal IgA and URTI in American college football players: a year longitudinal study. [electronic resource] - Medicine and science in sports and exercise Mar 2005 - 374-80 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0195-9131 Standard No.: 10.1249/01.mss.0000155432.67020.88 doi Subjects--Topical Terms: AdultCase-Control StudiesFootball--physiologyHumansImmunoglobulin A--metabolismLongitudinal StudiesMalePredictive Value of TestsRegression AnalysisRespiratory Tract Infections--epidemiologySaliva--metabolismTime Factors