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Conner, Mark and Grogan, Sarah and Simms-Ellis, Ruth and Cowap, Lisa and Armitage, Christopher J and West, Robert and Marshall, Anna-Marie and Siddiqi, Kamran (2021) Association between age at first reported e-cigarette use and subsequent regular e-cigarette, ever cigarette and regular cigarette use. Addiction , 116 , (7) , pp. 1839-1847.