Voutilainen, A., Virtanen, J. K., Hantunen, S., Nurmi, T., Kokko, P. and Tuomainen, T.-P. (2021) “Nonoptimal Follow-up Times Make It Difficult to Detect the Epidemiological Inverse Relationship Between 25-Hydroxyvitamin D and Lung Cancer”, Biostatistics Research, 1(1), pp. 1–10. doi: 10.37256/bsr.112023985.