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Hjalmarson A, Waagstein F.Hjalmarson A, et al. Among authors: waagstein f.Eur Heart J. 1991 Dec;12 Suppl F:63-9. doi: 10.1093/eurheartj/12.suppl_f.63.Eur Heart J. 1991.PMID: 1687118Review.
Herlitz J, Hjalmarson A, Waagstein F.Herlitz J, et al. Among authors: waagstein f.Br Heart J. 1989 Jan;61(1):9-13. doi: 10.1136/hrt.61.1.9.Br Heart J. 1989.PMID: 2563657Free PMC article.Review.
Hjalmarson A, Waagstein F.Hjalmarson A, et al. Among authors: waagstein f.Drugs. 1994;47 Suppl 4:31-9; discussion 39-40. doi: 10.2165/00003495-199400474-00006.Drugs. 1994.PMID: 7523060Review.