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	1.	[Hygienic evaluation of the instructional regimen of vocational-technical school students]. [electronic resource] by Mel'chenko, V A Producer: 19770415 In: Gigiena i sanitariia no. 9 Availability: No items available. Save to lists Add to cart (remove)
	2.	[Calculation and assessment of the effectiveness of practical use of the results of scientific research]. [electronic resource] by Sychev, A A Gaĭdaĭ, V Ia Mel'chenko, V A Producer: 19770415 In: Sovetskoe zdravookhranenie no. 1 Availability: No items available. Save to lists Add to cart (remove)

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