RT Journal T1 NAtional vs. state pure-food laws. JF JAMA JO JAMA YR 2007 FD January 17 VO 297 IS 3 SP 322 OP 322 DO 10.1001/jama.297.3.322-b UL http://dx.doi.org/10.1001/jama.297.3.322-b AB