@phdthesis{oai:rakuno.repo.nii.ac.jp:00006348,
 author = {Miyama, Takeshi},
 month = {Mar},
 note = {Thesis},
 school = {酪農学園大学},
 title = {Problem-oriented field epidemiological study in dairy production medicine using a causal inference approach},
 year = {2020}
}