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De Ridder AJ, Mortier G, Driessens M, De Bruyne J.De Ridder AJ, et al.Acta Belg Med Phys. 1985 Apr-Jun;8(2):123-6.Acta Belg Med Phys. 1985.PMID: 2931932Dutch.No abstract available.
Driessens M, Mortier G, De Ridder AJ.Driessens M, et al. Among authors: de ridder aj.Acta Belg Med Phys. 1983 Jan-Mar;6(1):37-40.Acta Belg Med Phys. 1983.PMID: 6227180Dutch.No abstract available.