“No Association Between Immunization and Guillain-Barré Syndrome in the United Kingdom, 1992 to 2000”
http://archinte.ama-assn.org/cgi/content/full/166/12/1301#AUTHINFO
Excerpt from document linked above:
“Our results provide reassurance that the great majority of sporadically occurring cases of GBS in the United Kingdom are not associated with immunization. Caution in interpretation is required because the risk of GBS associated with immunization may vary in different times and places. The distinct influenza vaccines prepared at different times may be associated with varying risks,1-2 and different vaccines may be in use in different countries during similar periods.”