Department of Medical Biosciences;
University of the Western Cape;
Bellville 7535;
South Africa;
Centre for Dermatology and Andrology;
Justus Liebig University;
35385 Giessen;
Germany;
Department of Dermatology;
Rheinische Friedrich-Wilhelms University;
53105 Bonn;
Germany;
精液; 多形核弹性蛋白酶; 生殖道; 无症状炎症; 年龄变化;