| Name | Info | Provider | Link |
|---|---|---|---|
| free resource | J-STAGE, Japan Science and Technology Information Aggregator, Electronic | https://doi.org/10.1248/bpb.b19-00385 | |
| COPD | free resource | MedlinePlus Health Information | https://medlineplus.gov/copd.html |
| Asthma | free resource | MedlinePlus Consumer Health Information | https://medlineplus.gov/asthma.html |
| subscription/membership/fee required | Medical Online, Meteo Inc | https://www.medicalonline.jp/meteo_linkout.php?issn=0918-6158&volume=42&issue=11&spage=1861 |