K. Eichhorn

[Standards for ultrasound in gynecology].

E. Merz, J. Wisser, H. Prömpeler, 2011, Ultraschall in der Medizin.

[Updated quality requirements regarding secondary differentiated ultrasound examination in prenatal diagnostics (= DEGUM level II) in the period from 18 + 0 to 21 + 6 weeks of gestation].

E. Merz, K. Eichhorn, T. Schramm, 2012, Ultraschall in der Medizin.

[DEGUM grade I quality standards in obstetric ultrasound diagnosis during the 19th-22nd week of pregnancy].

U. Gembruch, K. Eichhorn, T. Schramm, 2006, Ultraschall in der Medizin.

[Quality demands on continuing differential diagnostic sonography in prenatal diagnostics (DEGUM stage II) during the 18th to 22nd weeks of gestation].

E. Merz, K. Eichhorn, M. Hansmann, 2002, Ultraschall in der Medizin.

[DEGUM Level III recommendation for "follow-up" ultrasound examination (= DEGUM Level II) in the 11 -- 14 week period of pregnancy].

A. Staudach, E. Merz, J. Deutinger, 2004, Ultraschall in der Medizin.