Variability in the efficacy of a standardized antenatal steroid treatment was independent of maternal or fetal plasma drug levels: evidence from a sheep model of pregnancy

Tsukasa Takahashi, Masatoshi Saito, Augusto F. Schmidt, Haruo Usuda, Yuki Takahashi, Shimpei Watanabe, Takushi Hanita, Shinichi Sato, Yusaku Kumagai, Shota Koshinami, Hideyuki Ikeda, Sean Carter, Michael W. Clarke, Erin L. Fee, Nobuo Yaegashi, John P. Newnham, Alan H. Jobe, Matthew W. Kemp