1 Subjects: “...Fever / etiology...”

2 Subjects: “...Fever / etiology...”

3 “..., fever, pain at injection site; 2009 monovalent H1N1 vaccine and Guillain-Barre syndrome (GBS); and a...”

4 “..., fever, pain at injection site; 2009 monovalent H1N1 vaccine and Guillain-Barre syndrome (GBS); and a...”