Revisiting the revisited football team hepatitis outbreak.
D005188:False Negative Reactions; D006506:Hepatitis A / Q000175:diagnosis*; D006508:Hepatitis Antibodies / Q000032:analysis*; D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*
D006508:Hepatitis Antibodies; D007075:Immunoglobulin M