[Effect of the organized summer work of older schoolchildren on the state of their health].
D000293:Adolescent; D005221:Fatigue / Q000517:prevention & control; D006262:Health; D006801:Humans; D007844:Latvia; D011603:Psychophysiology; D012146:Rest; D012621:Seasons; D012959:Socioeconomic Factors; D014937:Work
O vliianii organizovannogo letnego truda starshikh shkol'nikov ne sostoianie ikh zdorov'ia.