sentences:  For these reasons, the Court of Appeals vacated and remanded to the District Court.After the Court of Appeals vacated and remanded, the District Court readdressed the dual grounds for dismissal, both dismissal pursuant to "Rule 12(b)(6) of the Federal Rules of Civil Procedure" and dismissal pursuant to the doctrine of "forum non conveniens".On remand, the District Court granted Pfizer's dismissal under "Rule 12(b)(6)" and found that the "Zango litigation" did not preclude dismissal for "forum non conveniens".