7Lagadic H, Faure JM, Mills AD, et al. Effects of blood sampling on plasma concentrations of corticosterone and glucose in laying hens caged in groups. Br Pouh Sci, 1990,31 (4) :823-829.
8湖南医学院第二附属医院检验科.临床生化检验.北京:科学出版社,1977:449-450.
9TANG W,JIANG Y,HUA G C,et al.Power factor correction with flyback converter employing charge control [A].IEEE APEC [C].USA: 1993.293-298.