Total materials flow control system: intra-hospital transport service control system.

@article{Watanabe1991TotalMF,
  title={Total materials flow control system: intra-hospital transport service control system.},
  author={Masaaki Watanabe and Masayuki Yoshizawa},
  journal={Japan-hospitals : the journal of the Japan Hospital Association},
  year={1991},
  volume={10},
  pages={49-52}
}