Developed countries a | References b | N (%) | Developing countries a | References b | N (%) |
---|---|---|---|---|---|
United States | [4, 11, 18, 23–25, 27, 29, 33, 40, 41, 49, 56, 58, 61, 62, 66, 68c, 71, 75, 78, 81–83, 85, 87] | 27 (29.4) | China | [5, 7, 19, 28] | 4 (4.3) |
Australia | [9, 26, 30, 31, 32, 35, 37, 39, 88] | 9 (9.8) | Korea | [13, 20] | 2 (2.2) |
Germany | [14, 21, 22, 55, 59, 77, 80] | 7 (7.6) | Nigeria | [10, 12] | 2 (2.2) |
United Kingdom | [16, 36, 45, 54, 74, 86, 88, 92] | 7 (7.6) | Malaysia | [8, 91] | 2 (2.2) |
Canada | [15, 34, 46, 51, 53, 65] | 6 (6.5) | Saudi Arabia | [1, 3] | 2 (2.2) |
Netherlands | [6, 44, 67, 68] | 4 (4.3) | India | [2] | 1 (1.1) |
Belgium | [38, 72, 84] | 3 (3.2) | Iran | [17] | 1 (1.1) |
Israel | [48, 50, 63] | 3 (3.2) | Pakistan | [69] | 1 (1.1) |
Italy | [52, 64, 73] | 3 (3.2) | Turkey | [60] | 1 (1.1) |
Finland | [76] | 1 (1.1) | Â | Â | Â |
Japan | [44] | 1 (1.1) | Â | Â | Â |
New Zealand | [42] | 1 (1.1) | Â | Â | Â |
Norway | [79] | 1 (1.1) | Â | Â | Â |
Spain | [90] | 1 (1.1) | Â | Â | Â |
Sweden | [47] | 1 (1.1) | Â | Â | Â |
Taiwan | [89] | 1 (1.1) | Â | Â | Â |
Total | Â | 76 (82.6) | Â | Â | 16 (17.4) |