Cite
APA Citation
Yingst, J., Foulds, J., Veldheer, S., Cobb, C. O., Yen, M., Hrabovsky, S., Allen, S. I., Bullen, C., & Eissenberg, T. (2020). measurement of Electronic Cigarette Frequency of Use Among Smokers Participating in a Randomized Controlled Trial. Nicotine & tobacco research, 22(5), 699–704. http://access.bl.uk/ark:/81055/vdc_100116601939.0x00001b