@misc{indiciae209ce1e4531a,
  title = {Expiratory muscle function in amyotrophic lateral sclerosis.},
  author = {M I Polkey and R A Lyall and M Green and P Nigel Leigh and J Moxham},
  year = {1998},
  doi = {10.1164/ajrccm.158.3.9710072},
  url = {https://pubmed.ncbi.nlm.nih.gov/9730998/},
  note = {Source identifier: 9730998}
}