Cliff's paper has been published in the Journal of Natural Products!
March 14, 2019
Ambiguity of NRPS Structure Predictions: Four Bidentate Chelating Groups in the Siderophore Pacifibactin: Clifford D. Hardy and Alison Butler
https://pubs.acs.org/doi/full/10.1021/acs.jnatprod.8b01073