Two-thirds of patients had a positive HEp-2 IIF nuclear pattern (all with titers ≥1/320), defining three novel scleromyositis subsets. First, antinuclear antibody (ANA)-negative scleromyositis was ...
An index can be defined on more than one column of a table. For example, if you have a table of this form: A multicolumn GiST index can be used with query conditions that involve any subset of the ...