An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Pfahlberg A, Gefeller O, Kölmel KF.Pfahlberg A, et al. Among authors: gefeller o.J Epidemiol Community Health. 1997 Dec;51(6):698-700. doi: 10.1136/jech.51.6.698.J Epidemiol Community Health. 1997.PMID: 9519135Free PMC article.
Pfahlberg A, Hassan K, Wille L, Lausen B, Gefeller O.Pfahlberg A, et al. Among authors: gefeller o.Public Health Rev. 1997;25(3-4):309-15.Public Health Rev. 1997.PMID: 9553446
Uter W, Pfahlberg A, Gefeller O, Schwanitz HJ.Uter W, et al. Among authors: gefeller o.Int Arch Occup Environ Health. 1998 Oct;71(7):487-92. doi: 10.1007/s004200050310.Int Arch Occup Environ Health. 1998.PMID: 9826082
Laske C, Gefeller O, Pfahlberg A, Zerr I, Schröter A, Poser S.Laske C, et al. Among authors: gefeller o.Eur J Epidemiol. 1999 Aug;15(7):631-5. doi: 10.1023/a:1007683208121.Eur J Epidemiol. 1999.PMID: 10543352