@misc{indiciaea16aec13cbf4,
  title = {Double capsule or capsule within a capsule: is there a difference?},
  author = {R James I Colville and Neil R McLean and Paul A Cross},
  year = {2003},
  doi = {10.1016/s0007-1226(02)00471-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12706168/},
  note = {Source identifier: 12706168}
}