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Cancer incidence for Swedish twins studied by means of bivariate frailty models.
Zahl PH, Harris JR. Zahl PH, et al. Genet Epidemiol. 2000 Dec;19(4):354-65. doi: 10.1002/1098-2272(200012)19:4<354::AID-GEPI7>3.0.CO;2-N. Genet Epidemiol. 2000. PMID: 11108645
Regression analysis with multiplicative and time-varying additive regression coefficients with examples from breast and colon cancer.
Zahl PH. Zahl PH. Stat Med. 2003 Apr 15;22(7):1113-27. doi: 10.1002/sim.971. Stat Med. 2003. PMID: 12652557
Incidence of breast cancer in Norway and Sweden during introduction of nationwide screening: prospective cohort study.
Zahl PH, Strand BH, Maehlen J. Zahl PH, et al. BMJ. 2004 Apr 17;328(7445):921-4. doi: 10.1136/bmj.38044.666157.63. Epub 2004 Mar 10. BMJ. 2004. PMID: 15013948 Free PMC article.
Natural history of breast cancers detected in the Swedish mammography screening programme: a cohort study.
Zahl PH, Gøtzsche PC, Mæhlen J. Zahl PH, et al. Lancet Oncol. 2011 Nov;12(12):1118-24. doi: 10.1016/S1470-2045(11)70250-9. Epub 2011 Oct 11. Lancet Oncol. 2011. PMID: 21996169
Adjusting and comparing survival curves by means of an additive risk model.
Zahl PH, Aalen OO. Zahl PH, et al. Lifetime Data Anal. 1998;4(2):149-68. doi: 10.1023/a:1009633523532. Lifetime Data Anal. 1998. PMID: 9658773
[Norwegian breast cancer mortality rates and validity of Swedish mammographic studies].
Zahl PH, Kopjar B, Maehlen J. Zahl PH, et al. Tidsskr Nor Laegeforen. 2001 Jun 20;121(16):1928-31. Tidsskr Nor Laegeforen. 2001. PMID: 11488185 Norwegian.
Frailty modelling for the excess hazard.
Zahl PH. Zahl PH. Stat Med. 1997 Jul 30;16(14):1573-85. doi: 10.1002/(sici)1097-0258(19970730)16:14<1573::aid-sim585>;2-q. Stat Med. 1997. PMID: 9257413 Review.
A proportional regression model for 20 year survival of colon cancer in Norway.
Zahl PH. Zahl PH. Stat Med. 1995 Jun 15;14(11):1249-61. doi: 10.1002/sim.4780141109. Stat Med. 1995. PMID: 7667564
Long-term survival of breast cancer in Norway by age and clinical stage.
Zahl PH, Tretli S. Zahl PH, et al. Stat Med. 1997 Jul 15;16(13):1435-49. doi: 10.1002/(sici)1097-0258(19970715)16:13<1435::aid-sim570>;2-8. Stat Med. 1997. PMID: 9249917
Benefits and harms of screening men for abdominal aortic aneurysm in Sweden: a registry-based cohort study.
Johansson M, Zahl PH, Siersma V, Jørgensen KJ, Marklund B, Brodersen J. Johansson M, et al. Among authors: zahl ph. Lancet. 2018 Jun 16;391(10138):2441-2447. doi: 10.1016/S0140-6736(18)31031-6. Lancet. 2018. PMID: 29916384
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