@article{642758,
      author = {Power, Michael L. and Schulkin, Jay.},
      url = {http://library.usi.edu/record/642758},
      title = {The evolution of the human placenta [electronic resource]  /},
      publisher = {Johns Hopkins University Press,},
      recid = {642758},
      pages = {1 online resource (266 p.) :},
      address = {Baltimore :},
      year = {2012},
}