Janssens R, Lang T, Vallejo A, Galinsky J, Morgan K, Plate A, De Ronne C, Verschueren M, Schoefs E, Vanhellemont A, Delforge M, Schjesvold F, Cabezudo E, Vandebroek M, Stevens H, Simoens S, Huys I. What matters most to patients with multiple myeloma? a Pan-European patient preference study. Front Oncol. 2022 Nov 29;12:1027353. doi: 10.3389/fonc.2022.1027353
Britt (DiBenedetti) DM, Collins FL, Cohen LM. Cigarette smoking and chewing gum use among college students. J Appl Biobehav Res. 2007 Jun 4;4(2):85-90. doi: 10.1111/j.1751-9861.1999.tb00057.x