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van Kooij RJ, Balerna M, Roatti A, Campana A.van Kooij RJ, et al.Andrologia. 1986 Mar-Apr;18(2):152-60. doi: 10.1111/j.1439-0272.1986.tb01753.x.Andrologia. 1986.PMID: 3717604
van Kooij RJ, Balerna M, Roatti A, Campana A.van Kooij RJ, et al.Andrologia. 1986 Sep-Oct;18(5):503-8. doi: 10.1111/j.1439-0272.1986.tb01817.x.Andrologia. 1986.PMID: 3800008
Campana A, Gatti MY, Ruspa M, Van Kooij R, Buetti G, Eppenberger U, Balerna M.Campana A, et al.Acta Eur Fertil. 1983 Sep-Oct;14(5):331-6.Acta Eur Fertil. 1983.PMID: 6673452
Colpi GM, Zanollo A, Van Kooij RJ, Campana A, Balerna M.Colpi GM, et al. Among authors: van kooij rj.Acta Eur Fertil. 1986 May-Jun;17(3):221-3.Acta Eur Fertil. 1986.PMID: 3788432
van Kooij RJ, Balerna M, Campana A.van Kooij RJ, et al.Experientia. 1985 Dec 15;41(12):1496-502. doi: 10.1007/BF01964782.Experientia. 1985.PMID: 3908137Review.No abstract available.
Campana A, van Kooij RJ, Stamm J, Balerna M.Campana A, et al. Among authors: van kooij rj.Ther Umsch. 1985 Jul;42(7):465-7.Ther Umsch. 1985.PMID: 4049304German.No abstract available.
Mak C, van Kooij RJ, Eimers JM, te Velde ER.Mak C, et al. Among authors: van kooij rj.Andrologia. 1994 Nov-Dec;26(6):323-9. doi: 10.1111/j.1439-0272.1994.tb00811.x.Andrologia. 1994.PMID: 7872506
Vogelpoel FR, van Kooij RJ, te Velde ER, Verhoef J.Vogelpoel FR, et al. Among authors: van kooij rj.Hum Reprod. 1991 Sep;6(8):1104-7. doi: 10.1093/oxfordjournals.humrep.a137493.Hum Reprod. 1991.PMID: 1806570