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	1.	Determination of neutral lactase activity in industrial enzyme preparations by a colorimetric enzymatic method: collaborative study. [electronic resource] by Engelen, A J Randsdorp, P H Producer: 19990323 In: Journal of AOAC International vol. 82 Availability: No items available. Save to lists Add to cart (remove)
	2.	[General and local reactions after parenteral administration of a sodium-containing contrast medium]. [electronic resource] by ENGELEN, A J PENN, W H Producer: 19981101 In: Journal belge de radiologie vol. 44 Availability: No items available. Save to lists Add to cart (remove)
	3.	Experimental studies of peribronchography. [electronic resource] by Engelen, A J Rodrigues de Miranda, J F Ariëns, E J Producer: 19731014 In: Investigative radiology vol. 8 Availability: No items available. Save to lists Add to cart (remove)
	4.	Pharmacokinetics of renal contrast media. I. Renal excretion processes studied in dogs by the stop-flow technique. [electronic resource] by Engelen, A J Rodrigues De Maranda, J F Ariëns, E J Producer: 19731014 In: Investigative radiology vol. 8 Availability: No items available. Save to lists Add to cart (remove)
	5.	Simple and rapid determination of phytase activity. [electronic resource] by Engelen, A J van der Heeft, F C Randsdorp, P H Smit, E L Producer: 19940728 In: Journal of AOAC International vol. 77 Availability: No items available. Save to lists Add to cart (remove)
	6.	Determination of phytase activity in feed by a colorimetric enzymatic method: collaborative interlaboratory study. [electronic resource] by Engelen, A J van der Heeft, F C Randsdorp, P H Somers, W A Schaefer, J van der Vat, B J Producer: 20011205 In: Journal of AOAC International vol. 84 Availability: No items available. Save to lists Add to cart (remove)