Chernenkov, Iu V [Study of the influence of cellular phones and personal computers on schoolchildren's health: hygienic aspects]. [electronic resource] - Gigiena i sanitariia - 84-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0016-9900 Subjects--Topical Terms: AdolescentCell PhoneChildComputersEducational StatusHealth StatusHumansHygieneLearning--physiologySchoolsStudentsSurveys and Questionnaires