The flood of papers in 2011 included work by Jane Foster (Neufeld et al., 2011); Sven Petterson (Heijtz et al., 2011); Stephen Collins (Bercik et al., 2011); and John Cryan, Ted Dinan, and John Bienenstock (Bravo et al., 2011).
Yup, there's clearly a footnote missing and everything's been shifted up.
