@article{a. imai2011yy,
  title={Peptide YY producing strumal carcinoid tumor of the ovary},
  author={k. matsunami,h. takagi,s. ichigo,t. murase,t. ikeda,a. imai},
  journal={European Journal of Gynaecological Oncology},
  volume={32},
  number={2},
  pages={201--202},
  doi = {10.12892/ejgo201102201},
  year={2011}
}