生物医学Medicine's paradigm shift: An opportunity for psychologyBy Dr. Suzanne Bennett Johnson, APA PresidentSeptember 2012, Vol 43, No. 8Print version: page 5, [1] （页面存档备份，存于互联网档案馆）
共生體學說by Harvard professor, and author of a general biology text, John W. Kimball. Reece, J., Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky