In March 2009, The BMJ published a paper which examined the link between drinking very hot tea and throat cancer.
In this film, Reza Malekzadeh, and other authors of this population based case-control study, talk about the effect of tea drinking on oesophageal cancer in the Golestan province, northern Iran.
You can find the original paper here: http://www.bmj.com/cgi/doi/10.1136/bmj.b929
Related:
Coffee vs. Tea - Infographic of Health Benefits and Risks http://goo.gl/StIsr