?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=C&rft.au=Campochiaro%2C+C&rft.aulast=Campochiaro&rft.date=3+January+2019&rft.atitle=Autoimmunity+and+immunodeficiency+at+the+crossroad%3A+autoimmune+disorders+as+the+presenting+feature+of+selective+IgM+deficiency&rft.volume=12&rft.issue=1&rft.title=BMJ+Case+Reports&rft.issn=1757-790X&rft.genre=article