PMC:7780429 / 20010-20989 JSON TXT

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Id	Subject	Object	Predicate	Lexical cue	hp_id
T98	38-46	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T99	261-269	Phenotype	denotes	Headache	http://purl.obolibrary.org/obo/HP_0002315
T100	321-330	Phenotype	denotes	headaches	http://purl.obolibrary.org/obo/HP_0002315
T101	547-555	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T102	675-683	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T103	867-874	Phenotype	denotes	hypoxia	http://purl.obolibrary.org/obo/HP_0012418
T104	876-887	Phenotype	denotes	hypercapnia	http://purl.obolibrary.org/obo/HP_0012416
T105	944-951	Phenotype	denotes	anxiety	http://purl.obolibrary.org/obo/HP_0000739

Id	Subject	Object	Predicate	Lexical cue	tao:has_database_id
287	38-46	Disease	denotes	headache	MESH:D006261
288	261-269	Disease	denotes	Headache	MESH:D006261
289	311-330	Disease	denotes	secondary headaches	MESH:D051271
290	547-555	Disease	denotes	headache	MESH:D006261
291	675-683	Disease	denotes	headache	MESH:D006261
292	704-727	Disease	denotes	multifactorial disorder	MESH:D004194
293	867-874	Disease	denotes	hypoxia	MESH:D000860
294	876-887	Disease	denotes	hypercapnia	MESH:D006935
295	944-951	Disease	denotes	anxiety	MESH:D001007

Id	Subject	Object	Predicate	Lexical cue
T199	0-120	Sentence	denotes	In the physiopathology of a new-onset headache, the exact mechanisms may be multiple, complex and not always well known.
T200	121-470	Sentence	denotes	Peripheral nociceptive structures and central sensitisation mechanisms may be involved in their development.15 16 The current International Headache Classification proposes, generically for secondary headaches, that the diagnostic criteria do not require remission or improvement of the underlying causal disorder before the diagnosis is formalised.
T201	471-770	Sentence	denotes	For acute processes, a close temporal relationship between the onset of the headache and the onset of the suspected causal disorder is usually sufficient.11 Following this classification, mask-associated headache would probably be a multifactorial disorder with unknown aetiopathogenesis at present.
T202	771-979	Sentence	denotes	Hypothetically, a number of factors may explain the association with filter mask use, including hypoxia, hypercapnia, local compression and mechanical phenomena, as well as anxiety about wearing the device.10