. . "klinisch onderzoek"@nl . . . "Improving Quitline Support Study"@en . . "1600"^^ . "Improving Quitline Support Study"@en . . . "clinical trial"@en . . . "2022-05-01T00:00:00Z"^^ . "NCT03538938" . "Improving Quitline Support Study: Optimizing Remotely Delivered Smoking Cessation Services for Low-Income Smokers"@en . . . "2018-06-07T00:00:00Z"^^ . "18"^^ . . "Improving Quitline Support Study"@en . . . "\u043A\u043B\u0456\u043D\u0456\u0447\u043D\u0435 \u0432\u0438\u043F\u0440\u043E\u0431\u0443\u0432\u0430\u043D\u043D\u044F"@uk . . "ensayu cl\u00EDnicu"@ast . "IQS"@en . . . . . .