One of the characteristic manifestations of prolonged stress is decreased performance in tasks that require attention, including the ability to shift focus as well as to learn and unlearn information. Anxiety and depression can make a person feel as if he
W. Chang, und I. McLean. BMC medical research methodology, (Januar 2006)4243<m:linebreak></m:linebreak>PUBM: Electronic; DEP: 20060302; JID: 100968545; 2005/09/07 received; 2006/03/02 accepted; 2006/03/02 aheadofprint; epublish;<m:linebreak></m:linebreak>Mesures de contrast.
A. Farmer, R. Milne, und T. Walley. BMJ (Clinical research ed.), (Januar 2011)6008<m:linebreak></m:linebreak>JID: 8900488; epublish;<m:linebreak></m:linebreak>Recerca clínica.