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Bull FC, Milton KE.Bull FC, et al.BMC Public Health. 2010 Aug 9;10:463. doi: 10.1186/1471-2458-10-463.BMC Public Health. 2010.PMID: 20696030Free PMC article.
Oja P, Bull FC, Fogelholm M, Martin BW.Oja P, et al. Among authors: bull fc.BMC Public Health. 2010 Jan 11;10:10. doi: 10.1186/1471-2458-10-10.BMC Public Health. 2010.PMID: 20064237Free PMC article.