Table 1.

Characteristics of the included studies

	International society or societies	Year of publication	Study
Korea	KSThR	2018	Kim et al. [14]
Italy	Italian scientific societiesa)	2015	Garberoglio et al. [16]
	MITT	2019	Papini et al. [15]
United Kingdom	NICE	2016	NA
Austria	Austrian Thyroid Association, Austrian Endocrine Society, Surgical Endocrinology Working Group of the Austrian Surgical Society, and Austrian Society of Nuclear Medicine	2020	Dobnig et al. [17]

KSThR, Korean Society of Thyroid Radiology; MITT, Italian Working Group on Minimally Invasive Treatments of the Thyroid; NICE, National Institute for Health and Clinical Excellence in the United Kingdom; NA, not applicable.

^a)The Italian scientific societies include the Società Italiana di Ultrasonologia in Medicina e Biologia, the Società Italiana di Endocrinologia, the Associazione Medici Endocrinologi, the Società Italiana di Radiologia Medica, the Club delle Unità di Endocrinochirurgia Italiane, the Società Italiana di Chirurgia, and the Associazione Italiana di Medicina Nucleare.