Department of OBGYN;
Johanna Etienne-Krankenhaus;
Neuss;
Germany;
Department of OBGYN;
St. Josef Krankenhaus;
Moers;
Germany;
Department of Radiology;
Klinikum Duisburg;
Duisburg;
Germany;
Lumpectomies; Breast; Radiation; Seroma; Prevention; Breast; Cosmesis;