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	1.	[Endoscopic laser therapy of stomach and duodenal ulcers]. [electronic resource] by Romanov, G A Koval'kov, A I Producer: 19890123 In: Klinicheskaia khirurgiia no. 8 Availability: No items available. Save to lists Add to cart (remove)
	2.	[Removal of foreign bodies from the upper segment of the digestive tract using an endoscope]. [electronic resource] by Romanov, G A Koval'kov, A I Producer: 19880421 In: Vestnik khirurgii imeni I. I. Grekova vol. 139 Availability: No items available. Save to lists Add to cart (remove)
	3.	[Endoscopic diagnosis and the arrest of hemorrhages of the upper gastrointestinal tract in acute and chronic kidney failure]. [electronic resource] by Romanov, G A Cherniakov, V L Shcherbakov, V A Koval'kov, A I Producer: 19810820 In: Sovetskaia meditsina no. 3 Availability: No items available. Save to lists Add to cart (remove)
	4.	[Ultrasonic study of the bile ducts in patients after cholecystectomy]. [electronic resource] by Portnoĭ, L M Roslov, A L Koval'kov, A I Legostaeva, T B Producer: 19890512 In: Khirurgiia no. 1 Availability: No items available. Save to lists Add to cart (remove)
	5.	[Radioendoscopic studies in the diagnosis of mechanical jaundice]. [electronic resource] by Portnoĭ, L M Denisov, V A Romanov, G A Koval'kov, A I Producer: 19820807 In: Vestnik rentgenologii i radiologii no. 2 Availability: No items available. Save to lists Add to cart (remove)
	6.	[Endoscopy of the upper gastrointestinal tract in acute and chronic renal failure]. [electronic resource] by Romanov, G A Lesin, E B Koval'kov, A I Shcherbakova, E O Producer: 19910801 In: Sovetskaia meditsina no. 2 Availability: No items available. Save to lists Add to cart (remove)
	7.	[A complex x-ray endoscopic study in complicated cholelithiasis]. [electronic resource] by Shumskiĭ, V I Koval'kov, A I Roslov, A L Denisov, V A Sachechelashvili, G L Producer: 19921127 In: Vestnik rentgenologii i radiologii no. 3 Availability: No items available. Save to lists Add to cart (remove)
	8.	[Retrograde pancreatocholangiography in the diagnosis of organic diseases of the hepatopancreatoduodenal area]. [electronic resource] by Portnoĭ, L M Denisov, V A Vasil'ev, Iu D Koval'kov, A I Roslov, A L Producer: 19851205 In: Khirurgiia no. 8 Availability: No items available. Save to lists Add to cart (remove)
	9.	[Endoscopy in foreign bodies of the upper digestive tract]. [electronic resource] by Romanov, G A Koval'kov, A I Obmornov, L E Lesin, E B Kuts, S A Producer: 19880930 In: Sovetskaia meditsina no. 3 Availability: No items available. Save to lists Add to cart (remove)
	10.	[Status of the stomach and duodenum in persons exposed to low doses of ionizing radiation]. [electronic resource] by Liubchenko, P N Koval'kov, A I Odinokova, V A Dubinina, E B Shatalova, O L Producer: 19910723 In: Sovetskaia meditsina no. 12 Availability: No items available. Save to lists Add to cart (remove)
	11.	[Diagnosis and endoscopic removal of residual calculi from the bile ducts]. [electronic resource] by Sazonov, A M Portnoĭ, L M Romanov, G A Koval'kov, A I Roslov, A L Producer: 19860505 In: Khirurgiia no. 2 Availability: No items available. Save to lists Add to cart (remove)
	12.	[Possibilities of phototherapy in the complex treatment of non-healing peptic ulcers]. [electronic resource] by Romanov, G A Sazonov, A M Tereshchenko, S G Koval'kov, A I Lesin, E B Ivanenko, T V Producer: 19910918 In: Sovetskaia meditsina no. 4 Availability: No items available. Save to lists Add to cart (remove)
	13.	[Residual choledocholithiasis]. [electronic resource] by Koval'kov, A I Romanov, G A Sachechelashvili, G L Sazanov, A M Filizhanko, V N Denisov, V A Agureev, A I Producer: 19920413 In: Sovetskaia meditsina no. 9 Availability: No items available. Save to lists Add to cart (remove)
	14.	[The characteristics of gastroduodenal pathology in the workers of a plant for plastic construction materials]. [electronic resource] by Liubchenko, P N Gorenkov, R V Koval'kov, A I Sibiriakova, L G Iurina, T M Potapova, V B Leonova, E E Salganikova, B S Kholod, O L Romanov, G A Producer: 19950427 In: Terapevticheskii arkhiv vol. 66 Availability: No items available. Save to lists Add to cart (remove)