By comparing saliva samples and hormonetests he found participants' body clocks had been delayed by 45 minutes.
通过比较唾液标本和激素水平，他发现受试者的生物钟延后了45分钟。
2
Scientists have tried various approaches, including genetic tests, tests that measure hormone stress responses, or brain imaging.
科学家们已经尝试了各种方法，包括基因测试，对激素应激反应的测试，亦或是脑成像。
3
Patients treated with somatropin should therefore have periodic thyroid function tests and thyroid hormone replacement therapy should be initiated or adjusted as needed.