@misc{indiciae8ab4fca153ce,
  title = {[Hepatitis A vaccine--present condition and future problems].},
  author = {Shigetoshi Fujiyama and Yutaka Sasaki},
  year = {2004},
  url = {https://pubmed.ncbi.nlm.nih.gov/15453371/},
  note = {Source identifier: 15453371}
}