Scoping Review and Bibliometric Analysis of the Most Influential Publications in Achalasia Research from 1995 to 2020

Table 7

Countries of origin of the top-500 cited articles.

Rank	Country	No. of articles
1	USA	217
2	Italy	51
3	Germany	32
4	China	30
5	Canada	24
6	Japan	21
7	Netherlands	12
8a	France	11
8b	Spain	11
9	Belgium	9
10	India	8
11	Australia	6
12a	Brazil	6
12b	Sweden	6
13a	Ireland	5
13b	United Kingdom	5
14	Turkey	4
15a	Iran	3
15b	Switzerland	3
15c	South Africa	3
16a	Argentina	2
16b	Chile	2
16c	Greece	2
16d	South Korea	2
17a	Czech Republic	1
17b	Egypt	1
17c	Mexico	1
17d	Pakistan	1
17e	Serbia	1
17f	Singapore	1