Electronic cigarette use in relation to changes in smoking status and respiratory symptoms -н Linnéa Hedman<sup>+<sup>, Gustaf Lyytinen<sup>+<sup>, Helena Backman, Magnus Lundbäck, Caroline Stridsman, Anne Lindberg, Hannu Kankaanranta, Lina Rönnebjerg, Eva Rönmark, Linda Ekerljung

Бүрэн текст авах