%0 Journal Article %T Reduced reward responsiveness in treatment resistant depression of middle-aged adults: Association with carotid artery stiffness and tetrahydrobiopterin %A Barhwal, Kalpana K. %A Parida, Barsha %A Pattnaik, Jigyansa %A Rowlo, Praveen %A Mahakud, Sudipta %A Patra, Suravi %A Rao, Bodepudi N. %A Mahapatra, Bidhubhusan %J PLoS ONE %V 18 %N 8 %D 2023-08-31 %I Public Library of Science %~ DeepDyve