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Basis of preparation	6 Months Ended
Basis of preparation	Jun. 30, 2018
Basis of preparation
Basis of preparation	Basis of preparation These condensed consolidated interim financial statements have been prepared in accordance with IAS 34 ‘Interim Financial Reporting’ as adopted by the European Union and as issued by the IASB. The condensed consolidated interim financial statements do not contain all information required for an annual report and should therefore be read in conjunction with Galapagos’ annual report 2017.