41. Some recent works have developed systems for magnetic hyperthermia using magnetic nanoparticles in mice. 42. Iron oxide nanoparticles also are using in magnetic hyperthermia as a cancer treatment method. 43. Hikers must pay attention to hyperthermia and thunderbolts. 44. Substance abuse, related cardiac arrhythmia, or hyperthermia was the cause of death. 45. The heat resulted in two boys from Bradley County, Tennessee dying of hyperthermia . 46. All were suffering from hyperthermia , sunburn, dehydration, and near-starvation. 47. Bayardo classified the deaths as caused by hyperthermia ( overheating ), dehydration and suffocation. 48. Death was caused by hyperthermia , the Fulton County medical examiner's office said. 49. Most were elderly people who developed a high fever due to hyperthermia , he said. 50. Exposure ( including heat stroke, dehydration, and hyperthermia ) were the leading cause.