RT Journal
A1 Pucciani D
T1 OLd together
JF JAMA
JO JAMA
YR 2012
FD June 6
VO 307
IS 21
SP 2234
OP 2234
DO 10.1001/jama.2012.3560
UL http://dx.doi.org/10.1001/jama.2012.3560
AB