@article{EnglertSchaeferRolletal.2004,
  author    = {Englert, Heike and Schaefer, GA. and Roll, S. and Ahlers, C. and Beier, K. and Willich, SN.},
  title     = {Association between erectile dysfunction and cardiac risk factors in Berlin men aged 40-79},
  series = {Biometrical J},
  volume    = {46 (Suppl.)},
  journal   = {Biometrical J},
  issn      = {1521-4036},
  pages     = {132 -- -},
  year      = {2004},
  language  = {en}
}
@article{EnglertSchaeferRolletal.2004,
  author    = {Englert, Heike and Schaefer, GA. and Roll, S. and Beier, KM. and Willich, SN.},
  title     = {Results of the Berlin Male Study},
  series = {Am J Epidemiol},
  journal   = {Am J Epidemiol},
  issn      = {0002-9262},
  pages     = {90 -- -},
  year      = {2004},
  language  = {en}
}
@article{EnglertSchaeferRolletal.2004,
  author    = {Englert, Heike and Schaefer, GA. and Roll, S. and Beier, K. and Willich, SN.},
  title     = {The Prevalence of Erectile Dysfunction using different Definitions},
  series = {J Epi Community Health},
  volume    = {58},
  journal   = {J Epi Community Health},
  issn      = {0143-005X},
  pages     = {20 -- -},
  year      = {2004},
  language  = {en}
}