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	1.	Endoscopic versus Caldwell-Luc approach in chronic maxillary sinusitis: comparison of symptoms at one-year follow-up. [electronic resource] by Penttilä, M A Rautiainen, M E Pukander, J S Karma, P H Producer: 19950504 In: Rhinology vol. 32 Availability: No items available. Save to lists Add to cart (remove)
	2.	Otoscopic diagnosis of middle ear effusion in acute and non-acute otitis media. I. The value of different otoscopic findings. [electronic resource] by Karma, P H Penttilä, M A Sipilä, M M Kataja, M J Producer: 19890602 In: International journal of pediatric otorhinolaryngology vol. 17 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Diagnostic value of plain radiographs in chronic maxillary sinusitis: a comparison between radiological and endoscopic findings in 75 patients. [electronic resource] by Laranne, J E Penttilä, M A Paakkala, T A Pukander, J S Karma, P H Producer: 19921230 In: Rhinology vol. 30 Availability: No items available. Save to lists Add to cart (remove)
	4.	Mequitazine and dexchlorpheniramine in perennial rhinitis. A double-blind cross-over placebo-controlled study. [electronic resource] by Pukander, J S Karma, P H Penttilä, M A Perälä, M E Ylitalo, P Kataja, M J Producer: 19910408 In: Rhinology vol. 28 Availability: No items available. Save to lists Add to cart (remove)

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