RT Journal A1 Zickgraf C T1 DAydream for travis JF JAMA JO JAMA YR 2009 FD June 3 VO 301 IS 21 SP 2190 OP 2190 DO 10.1001/jama.2009.686 UL http://dx.doi.org/10.1001/jama.2009.686 AB