@misc{indiciae435d52c3cb4d,
  title = {A method for analyzing longitudinal outcomes with many zeros.},
  author = {Haiyi Xie and Gregory McHugo and Anjana Sengupta and Robin Clark and Robert Drake},
  year = {2004},
  doi = {10.1023/b:mhsr.0000044749.39484.1b},
  url = {https://pubmed.ncbi.nlm.nih.gov/15588034/},
  note = {Source identifier: 15588034}
}