Proteomics / Adolescent / Germany / Humans / Fertility and Sterility / Female / Young Adult / Tandem Mass Spectrometry / Proteins / Clinical Sciences / Dimensional / Middle Aged / Adult / Public health systems and services research / Endometriosis / Biological markers / Gel electrophoresis / Two-Dimensional Gel Electrophoresis / Two dimensional Gel Electrophoresis / Case Control Studies / Female / Young Adult / Tandem Mass Spectrometry / Proteins / Clinical Sciences / Dimensional / Middle Aged / Adult / Public health systems and services research / Endometriosis / Biological markers / Gel electrophoresis / Two-Dimensional Gel Electrophoresis / Two dimensional Gel Electrophoresis / Case Control Studies