Table 1.

Classification of the 238 retrieved articles by type of study.

				Italian		Non-Italian
				n	%	n	%
Primary (157)	Basic (7)	Theoretical (method development)	Analytical measurement procedure	0	0	0	0
			Imaging procedure	0	0	0	0
			Biometric procedure	0	0	0	0
			Test development assessment procedure	0	0	0	0
		Applied	Animal study	0	0	0	0
			Cell study	0	0	0	0
			Genetic engineering and Gene sequencing	5	2.4	2	6.2
			Biochemistry	0	0	0	0
			Material development	0	0	0	0
			Genetic studies	0	0	0	0
	Clinical (27)	Experimental	Clinical study	1	0.5	0	0
		Observational	Therapy study	3	1.5	0	0
			Prognostic study	0	0	0	0
			Diagnostic study	3	1.5	0	0
			Observational study with drugs	0	0	0	0
			Secondary data analysis	0	0	0	0
			Case series	15	7.3	0	0
			Single case report	5	2.4	0	0
	Epidemiological (35)	Experimental	Intervention study	0	0	0	0
		Observational	Cohort study	0	0	0	0
			Case control study	0	0	0	0
			Cross-sectional study	2	1	0	0
			Ecological study	2	1	4	12.1
			Monitoring and Surveillance	8	3.9	8	24.2
			Modeling and Prediction	6	2.9	2	6.1
			Description with registry data	2	1	1	3
	Management (88)	Hospital management case report		55	26.8	0	0
		Clinical management case report		8	3.9	0	0
		Experts' recommendation		24	11.7	1	3
Secondary (16)	Meta-analysis			0	0	0	0
	Review (16)	Narrative		10	4.9	4	12.1
		Systematic		1	0.5	1	3
Other (65)	Ethics and Legal Medicine			7	3.4	1	3
	Commentary and Viewpoint			48	23.4	9	27.3
Total				205	100.0	33	100.0