000 00357nam a2200109Ia 4500
008 160531s9999 xx 000 0 und d
100 _aLikis, Frances E.
245 _aProgestogens for Prevention of Preterm Birth
245 _cby Frances E Likis, et al.
260 _c2012
856 _uhttp://www.ncbi.nlm.nih.gov/books/NBK109368/pdf/Bookshelf_NBK109368.pdf
999 _c295462
_d295462