@misc{indiciae15116c4ad74a,
  title = {Biliary lithiasis and helminthiasis.},
  author = {A E Yellin and A J Donovan},
  year = {1981},
  doi = {10.1016/s0002-9610(81)80022-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/7020457/},
  note = {Source identifier: 7020457}
}