RT Journal Article SR Electronic T1 Tdap Vaccination in Pregnancy: New Guidance, New Challenges JF North Carolina Medical Journal JO N C Med J FD North Carolina Institute of Medicine SP 421 OP 422 DO 10.18043/ncm.74.5.421 VO 74 IS 5 A1 Curran, Diana YR 2013 UL http://www.ncmedicaljournal.com/content/74/5/421.abstract AB