RT Journal Article SR Electronic T1 The Stress of Relaxation JF Science JO Science FD American Association for the Advancement of Science SP 1331 OP 1332 DO 10.1126/science.1148142 VO 317 IS 5843 A1 Hartzell, H. Criss YR 2007 UL http://science.sciencemag.org/content/317/5843/1331.abstract AB