To add to that: A majority of head and neck cancers are caused by HPV.
The authors note possible additional factors to diet. I wonder whether HPV vaccination may be loosely inversely correlated with vegetarianism (geographical/socio-economic/healthcare system differences etc.).
To add to that: A majority of head and neck cancers are caused by HPV.
The authors note possible additional factors to diet. I wonder whether HPV vaccination may be loosely inversely correlated with vegetarianism (geographical/socio-economic/healthcare system differences etc.).