Re: “Crystal Engineering in the Regulatory and Patent Literature of Pharmaceutical Solid Forms”

This contribution was prompted in response to the recent Perspective by Desiraju and Nangia (hereafter DN).1 The somewhat unconventional format used here is consistent with scientific discourse in general and the nature of an Editorial comment. Following an initial exchange of views the four authors opted on adopting a format historically employed in written discourse−namely, presenting the views of various commentators together in the same textual offering. Likewise, each of the authors of this contribution wishes to comment individually on the DN Perspective, but we wish to contain the comments in one publication to be read, considered, and cited together rather than individually. As a result, each comment is self-contained, with its own text and references cited at the end.