Copy to clipboardCopy Grant, Cameron C; Roberts, Mavis; Scragg, Robert; Stewart, Joanna; Lennon, Diana; Kivell, Denise; Ford, Rodney; Menzies, Rosalie; (2003) Delayed immunisation and risk of pertussis in infants: unmatched case-control study. BMJ, 326 (7394). pp. 852-853. ISSN 1468-5833 DOI: https://doi.org/10.1136/bmj.326.7394.852
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Copy to clipboardCopyhttps://doi.org/10.1136/bmj.326.7394.852
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