Remove the comma before the parenthetical

Error²Federal courts, Illinois courts21st and 22nd editions

The court-and-date parenthetical follows the pincite after a space, with no comma: “477 U.S. 242, 247 (1986)”.¹

1. 1R. 10.5 Date or Year; B10.1 Full Citation; R. 16.4 Consecutively Paginated Journals; T1.2 Federal Administrative and Executive Materials.
2. 2An error: the rule in note 1 allows one form, and this is not it.