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Comment
. 2001 Feb 10;322(7282):362-3; author reply 363.

Contraception in general practice before teenage pregnancy. Inappropriate selection of cases and controls biased study

W C Leung
Comment

Contraception in general practice before teenage pregnancy. Inappropriate selection of cases and controls biased study

W C Leung. BMJ. .
No abstract available

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Comment on

References

    1. Churchill D, Allen J, Pringle M, Hippisley-Cox J, Ebdon D, Macpherson M, et al. Consultation patterns and provision of contraception in general practice before teenage pregnancy: case-control study. BMJ. 2000;321:486–489. . (19-26 August.) - PMC - PubMed
    1. National Committee of Inquiry into Higher Education. Report. Higher education in the learning society. London: Stationery Office; 1997.
    1. Churchill D, Allen J, Pringle M, Hippisley-Cox J, Ebdon D, Macpherson M, Bradley S. Consultation patterns and provision of contraception in general practice before teenage pregnancy: case-control study. BMJ. 2000;321:486–489. . (19-26 August.) - PMC - PubMed
    1. Burack R. Teenage sexual behaviour: attitudes towards and declared sexual activity. Br J Fam Plann. 1999;24:145–148. - PubMed
    1. Churchill D, Allen J, Pringle N, Hippisley-Cox J, Ebdon D, McPherson M, et al. Consultation patterns and provision of contraception in general practice before teenage pregnancy: case-control study. BMJ. 2000;321:486–489. . (19-26 August). - PMC - PubMed