Colorimetric identification of prostaglandins in subnanomole amounts.

@article{Kiefer1975ColorimetricIO,
  title={Colorimetric identification of prostaglandins in subnanomole amounts.},
  author={H C Kiefer and Carl R Johnson and Kiran Arora and H S Kantor},
  journal={Analytical biochemistry},
  year={1975},
  volume={68 1},
  pages={336-40}
}