Free and conjugated forms of metabolites are indispensable components of steroids: The first evidence from an estuarine food web

Shan Liu, Ru Xu, Yun-Feng Pan, Qian-Yi Huang, Nian-Nian Wu, Heng-Xiang Li, Lang Lin, Rui Hou, Xiang‐Rong Xu, Xiang‐Rong Xu