RT Journal T1 NAtural vs vaccine-acquired immunity to cytomegalovirus—reply JF JAMA JO JAMA YR 2003 FD October 1 VO 290 IS 13 SP 1709 OP 1709 DO 10.1001/jama.290.13.1709-c UL http://dx.doi.org/10.1001/jama.290.13.1709-c AB