Evidence of the protective effect of smoking against thyroid cancer

Cigarette smoking and the risk of thyroid cancer.

Kreiger N, Parkes R. Cigarette smoking and the risk of thyroid cancer. Eur J Cancer. 2000 Oct;36(15):1969-73. doi: 10.1016/s0959-8049(00)00198-2. PMID: 11000579.

Thyroid cancer risk and smoking status: a meta-analysis. Cancer Causes Control

Cho YA, Kim J. Thyroid cancer risk and smoking status: a meta-analysis. Cancer Causes Control. 2014 Sep;25(9):1187-95. doi: 10.1007/s10552-014-0422-2. Epub 2014 Jul 1. PMID: 24981099.