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Schmidt M, Kimmig R.Schmidt M, et al. Among authors: kimmig r.Gynakol Geburtshilfliche Rundsch. 2006;46(4):166-73. doi: 10.1159/000095725.Gynakol Geburtshilfliche Rundsch. 2006.PMID: 17068401Review.German.
Schmidt M, Kimmig R.Schmidt M, et al. Among authors: kimmig r.Gynakol Geburtshilfliche Rundsch. 2007;47(4):199-204. doi: 10.1159/000107259.Gynakol Geburtshilfliche Rundsch. 2007.PMID: 17914264Review.German.