削除: NINDS: Postural Tachycardia Syndrome (POTS) | https://www.ninds.nih.gov/health-information/disorders/postural-tachycardia-syndrome-pots
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| 追加: NCBI Bookshelf: Postural Orthostatic Tachycardia Syndrome | https://www.ncbi.nlm.nih.gov/books/NBK541074/
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| 削除: MedlinePlus: Autonomic Nervous System Disorders | https://medlineplus.gov/autonomicnervoussystemdisorders.html |
| 追加: PubMed Central: Diagnosis and management of postural orthostatic tachycardia syndrome | https://pmc.ncbi.nlm.nih.gov/articles/PMC8920526/ |