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Holmberg L, Ohlander EM, Byers T, Zack M, Wolk A, Bergström R, Bergkvist L, Thurfjell E, Bruce A, Adami HO.Holmberg L, et al. Among authors: bergstrom r.Arch Intern Med. 1994 Aug 22;154(16):1805-11. doi: 10.1001/archinte.154.16.1805.Arch Intern Med. 1994.PMID: 8053747
Hansson LE, Nyrén O, Bergström R, Wolk A, Lindgren A, Baron J, Adami HO.Hansson LE, et al. Among authors: bergstrom r.Int J Cancer. 1994 Jun 1;57(5):638-44. doi: 10.1002/ijc.2910570505.Int J Cancer. 1994.PMID: 8194870
Andersson SO, Wolk A, Bergström R, Giovannucci E, Lindgren C, Baron J, Adami HO.Andersson SO, et al. Among authors: bergstrom r.Int J Cancer. 1996 Dec 11;68(6):716-22. doi: 10.1002/(SICI)1097-0215(19961211)68:6<716::AID-IJC4>3.0.CO;2-6.Int J Cancer. 1996.PMID: 8980172Free article.