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	1.	[Physiological and hygienic evaluation of facilities for physical training in children's preschool institutions]. [electronic resource] by Grebniak, N P Tkach, B A Producer: 19850930 In: Gigiena i sanitariia no. 5 Availability: No items available. Save to lists Add to cart (remove)
	2.	[Efficacy of health promotion for children in urban pioneer camps]. [electronic resource] by Grebniak, N P Tkach, B A Producer: 19831123 In: Gigiena i sanitariia no. 7 Availability: No items available. Save to lists Add to cart (remove)
	3.	[Experiences in improving the health status of frequently ill children in preschool institutions]. [electronic resource] by Grebniak, N P Mikhaĭlova, T V Guzeeva, V S Vasilevskaia, L V Tkach, B A Producer: 19890428 In: Gigiena i sanitariia no. 9 Availability: No items available. Save to lists Add to cart (remove)

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