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1987 Juni 20 Rotterdam (Dijkzigt), ‘Sunscreens; lokale bescherming tegen UV-straling’, bl. 881. 22-23 Enschede (Univer. Twente), International Society of Electrophysiological Kinesiology. 22-23 Rotterdam (Erasmus), International Symposium on Coronary Arteriography. 22-24 Amsterdam (Crest Hotel), ‘Clinical interpretation of investigational drug data’. 22-26 Antwerpen (UIA), ‘Mechanismen en behandeling van respiratoire symptomen’. 23 Utrecht…
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