Radiation exposure does not significantly contribute to the risk of recurrence of Chernobyl thyroid cancer. - Rumyantsev PO; Saenko VA; Ilyin AA; Stepanenko VF; Rumyantseva UV; Abrosimov AY; Lushnikov EF; Rogounovitch TI; Shibata Y; Mitsutake N; Tsyb AF; Yamashita S (The Journal of clinical endocrinology and metabolism, 2011)