inputs/U/Specimen/: translated some multi-column filters to postprocessing derived columns, using the steps at http://wiki.vegpath.org/Adding_new-style_import_to_a_datasource#Translating-filters-to-postprocessing-derived-columns
inputs/U/Specimen/: translated some multi-column filters to postprocessing derived columns, using the steps at http://wiki.vegpath.org/Adding_new-style_import_to_a_datasource#Translating-filters-to-postprocessing-derived-columns