Could you give me some smaller notes? <a href=" http://jts.co.uk/buy-zithromax-online-uk.pdf ">cheap zithromax uk</a> The specific cause of thyroid cancer remains unknown. “We’ve identified certain risk factors, but no cause — like most cancers, it’s multifactorial,” says Teng. “While the vast majority of cases of thyroid cancer are considered sporadic — or random — you are at higher risk if you’ve had exposure to high doses of radiation, especially in childhood, or insufficient dietary iodine.”