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	1.	Hypertonicity of the challenge solution may increase the diagnostic accuracy of histamine challenge. [electronic resource] by Koskela, Heikki O Kontra, Kirsi M Purokivi, Minna K Randell, Jukka T Producer: 20050908 In: Respiratory medicine vol. 99 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Interpretation of cough provoked by airway challenges. [electronic resource] by Koskela, Heikki O Kontra, Kirsi M Purokivi, Minna K Randell, Jukka T Producer: 20051223 In: Chest vol. 128 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Utility of hypertonic histamine challenge in distinguishing difficult-to-diagnose asthma. [electronic resource] by Purokivi, Minna Koskela, Heikki O Koistinen, Tiina Magga, Jarkko Peuhkurinen, Keijo Kiviniemi, Vesa Kontra, Kirsi M Producer: 20100730 In: The clinical respiratory journal vol. 1 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Utility of cough response during hypertonic histamine challenge in diagnosing asthma. [electronic resource] by Purokivi, Minna Koskela, Heikki O Koistinen, Tiina Magga, Jarkko Peuhkurinen, Keijo Kiviniemi, Vesa Kontra, Kirsi M Producer: 20090506 In: Respiratory medicine vol. 102 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)