Hartmann H
Beitr Orthop Traumatol. 1989 Jul;36(7):322-8.
In 10-15% of the pupils at ten-year general polytechnical schools are chronic diseases, to obtain which mean a restriction of their vocational fitness. 2-4% of these youth have diseases of vertebral column. They are allowed to apply for an apprenticeship sooner than the other pupils after having had a vocational guidance from the aspect of industrial medicine. Under the conditions of large town the multiplicity of vocations can be considered as not substantially limited for these pupils.
在十年制普通综合技术学校中，10%至15%的学生患有慢性病，这意味着他们的职业适应性受到限制。这些青少年中有2%至4%患有脊柱疾病。在接受了工业医学方面的职业指导后，他们比其他学生更早被允许申请学徒。在大城市的条件下，这些学生的职业多样性可被视为没有受到实质性限制。
