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Roffel AF, Ensing K, Elzinga CR, in 't Hout WG, van Tintelen EJ, de Zeeuw RA, Zaagsma J.Roffel AF, et al. Among authors: elzinga cr.Arch Int Pharmacodyn Ther. 1991 Nov-Dec;314:105-21.Arch Int Pharmacodyn Ther. 1991.PMID: 1824185
Roffel AF, Elzinga CR, Zaagsma J.Roffel AF, et al. Among authors: elzinga cr.Pulm Pharmacol. 1990;3(1):47-51. doi: 10.1016/0952-0600(90)90009-8.Pulm Pharmacol. 1990.PMID: 2152027
Roffel AF, Elzinga CR, Van Amsterdam RG, De Zeeuw RA, Zaagsma J.Roffel AF, et al. Among authors: elzinga cr.Eur J Pharmacol. 1988 Aug 9;153(1):73-82. doi: 10.1016/0014-2999(88)90589-4.Eur J Pharmacol. 1988.PMID: 3215279
Roffel AF, Hamstra JJ, Elzinga CR, Zaagsma J.Roffel AF, et al. Among authors: elzinga cr.Arch Int Pharmacodyn Ther. 1994 Jul-Aug;328(1):82-98.Arch Int Pharmacodyn Ther. 1994.PMID: 7893193