Clift, A., von Ende, A., Tan, P., Sallis, H., Lindson, N., Coupland, C., . . . Hopewell, J. (2021). Smoking and COVID-19 outcomes: An observational and Mendelian randomisation study using the UK Biobank cohort. BMJ.
芝加哥风格引文Clift, AK, et al. Smoking and COVID-19 Outcomes: An Observational and Mendelian Randomisation Study Using the UK Biobank Cohort. BMJ, 2021.
MLA引文Clift, AK, et al. Smoking and COVID-19 Outcomes: An Observational and Mendelian Randomisation Study Using the UK Biobank Cohort. BMJ, 2021.
警告：这些引文格式不一定是100％准确.