Andre has “great, great trouble with the data” from that vegetables and PVP paper:
For instance, the table says that no turnip has ever been PVP protected; according to the Office’s data base, two have been. The authors highlighted in a previous paper, with a ‘hurrah’, that Fowler and Mooney made a math error in their 1983 “Shattering…”. They also succumb to a simple subtraction at the bottom of the first column.
There’s more. Over to the authors… BTW, our original source was the CAS-IP blog.