Marwood, L Study protocol for a randomised pragmatic trial comparing the clinical and cost effectiveness of lithium and quetiapine augmentation in treatment resistant depression (the LQD study). [electronic resource] - BMC psychiatry 06 2017 - 231 p. digital Publication Type: Clinical Trial, Phase IV; Comparative Study; Journal Article; Multicenter Study; Pragmatic Clinical Trial; Randomized Controlled Trial ISSN: 1471-244X Standard No.: 10.1186/s12888-017-1393-0 doi Subjects--Topical Terms: AdultAntidepressive Agents--administration & dosageAntipsychotic Agents--administration & dosageCost-Benefit Analysis--methodsDepressive Disorder, Major--diagnosisDepressive Disorder, Treatment-Resistant--diagnosisDrug Therapy, CombinationHumansLithium--administration & dosageQuetiapine Fumarate--administration & dosage