A study conducted by the US National Center for Biotechnology Information confirmed that 56 percent of the injuries in the US army's fitness test result from sit-ups.
美国国家生物技术信息中心的一项研究证实,56%的美国军队体能测试受伤案例都是由仰卧起坐引发。
Using the biological primary databases at the National Center for Biotechnology Information (NCBI), we constructed a secondary database of phytohormone-related nucleotides and proteins.