Federal aid rescues D-HH finances in back half of 2020 Modified: 3/3/2021 9:16:20 PM LEBANON — Dartmouth-Hitchcock Health ended the first half of its fiscal year in the black, thanks in part to aid from Washington during the COVID-19 pandemic and a strong return from Wall Street, according to a filing with bondholders. D-HH had a positive operating margin of $38.6 million for the six months ending Dec. 31, the Feb. 24 filing said. Credit for that performance is due to gains on investments, as well as $49.1 million federal CARES Act funds and continued growth in the Lebanon-based health syst...