(Reuters) -The U.S. Food and Drug Administration (FDA) has put on hold its ban on sales of Juul Labs Inc’s e-cigarettes, with the health agency saying late on Tuesday that it would do an additional review of the company’s marketing application. Juul had won a temporary reprieve a couple of weeks ago after a U.S. federal appeals court stayed the FDA’s ban following an appeal from the company for an emergency review of the regulator’s order. The once red-hot vape company has said the FDA’s decision to block sales of its products is “extraordinary and unlawful”, citing, among other things, the ag…