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Items: 8

2.
S Bernstein, B Brorsson, T Aberg, H Emanuelsson, R Brook, L Werko
Heart. 1999 May; 81(5): 470–477. doi: 10.1136/hrt.81.5.470
PMCID:
PMC1729044
3.
G. Ordonez, P. Phelan, A. Olinsky, C. Robertson
Arch Dis Child. 1998 Feb; 78(2): 143–147. doi: 10.1136/adc.78.2.143
PMCID:
PMC1717453
4.
G Pappas, W C Hadden, L J Kozak, G F Fisher
Am J Public Health. 1997 May; 87(5): 811–816. doi: 10.2105/ajph.87.5.811
PMCID:
PMC1381055
5.
C V van Walraven, J M Paterson, M Kapral, B Chan, M Bell, G Hawker, J Gollish, J Schatzker, J I Williams, C D Naylor
CMAJ. 1996 Sep 15; 155(6): 697–706.
PMCID:
PMC1335222
6.
D B Matchar, E Z Oddone, D C McCrory, L B Goldstein, P B Landsman, G Samsa, R H Brook, C Kamberg, L Hilborne, L Leape, R Horner
Health Serv Res. 1997 Aug; 32(3): 325–342.
PMCID:
PMC1070194
7.
H Krakauer, I Jacoby, M Millman, J E Lukomnik
Health Serv Res. 1996 Jun; 31(2): 191–211.
PMCID:
PMC1070113
8.
Antonio Giuffrida, Hugh Gravelle, Martin Roland
BMJ. 1999 Jul 10; 319(7202): 94–98. doi: 10.1136/bmj.319.7202.94
PMCID:
PMC28159

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