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Perrée J, van Leeuwen TG, Velema E, Smeets M, de Kleijn D, Borst C.Perrée J, et al. Among authors: van leeuwen tg.Photochem Photobiol. 2002 Jan;75(1):68-75. doi: 10.1562/0031-8655(2002)075<0068:uaprln>2.0.co;2.Photochem Photobiol. 2002.PMID: 11837329
Pasterkamp G, Peters RJ, Kok WE, Van Leeuwen TG, Borst C.Pasterkamp G, et al. Among authors: van leeuwen tg.Am Heart J. 1997 Oct;134(4):680-4. doi: 10.1016/s0002-8703(97)70051-6.Am Heart J. 1997.PMID: 9351735
van Erven L, van Leeuwen TG, Post MJ, van der Veen MJ, Velema E, Borst C.van Erven L, et al. Among authors: van leeuwen tg, van der veen mj.J Thorac Cardiovasc Surg. 1992 Oct;104(4):1053-9.J Thorac Cardiovasc Surg. 1992.PMID: 1405663