PMC:7780429 / 4394-5215 JSON TXT

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Id	Subject	Object	Predicate	Lexical cue	hp_id
T14	296-303	Phenotype	denotes	itching	http://purl.obolibrary.org/obo/HP_0000989
T15	305-312	Phenotype	denotes	fatigue	http://purl.obolibrary.org/obo/HP_0012378
T16	314-321	Phenotype	denotes	anxiety	http://purl.obolibrary.org/obo/HP_0000739
T17	326-340	Phenotype	denotes	claustrophobia	http://purl.obolibrary.org/obo/HP_0025253
T18	398-406	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T19	479-487	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T20	557-568	Phenotype	denotes	hypercapnia	http://purl.obolibrary.org/obo/HP_0012416
T21	706-714	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315
T22	788-796	Phenotype	denotes	headache	http://purl.obolibrary.org/obo/HP_0002315

Id	Subject	Object	Predicate	Lexical cue	tao:has_database_id
70	191-217	Disease	denotes	decreased visual, auditory	MESH:D014786
71	296-303	Disease	denotes	itching	MESH:D011537
72	305-312	Disease	denotes	fatigue	MESH:D005221
73	314-321	Disease	denotes	anxiety	MESH:D001007
74	326-340	Disease	denotes	claustrophobia	MESH:D010698
75	398-406	Disease	denotes	headache	MESH:D006261
76	479-487	Disease	denotes	headache	MESH:D006261
77	542-568	Disease	denotes	hypoxaemia and hypercapnia	MESH:D006935
78	706-714	Disease	denotes	headache	MESH:D006261
79	788-796	Disease	denotes	headache	MESH:D006261

Id	Subject	Object	Predicate	Lexical cue
T37	0-821	Sentence	denotes	In ‘front-line’ work, the use of masks can be very prolonged.8 Although, in general, highly effective masks are well tolerated, some problems have been reported, such as: general discomfort; decreased visual, auditory or vocal capacity; excessive heat or humidity; facial pressure; skin lesions; itching; fatigue; anxiety and claustrophobia.9 Another effect described in the 2003 SARS epidemic was headache, whose prevalence reached 37.3% of the health personnel studied.10 This headache can be related to mechanical factors, the presence of hypoxaemia and hypercapnia or to the stress associated with mask use.11 12 Our aim is to demonstrate if there is an association between the appearance of ‘de novo’ headache with the type of mask and its time of use, as well as the impact of this headache on health professionals.