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Leisure and Hospitality Management Toxicology Transplantation Transportation Urban Studies Urology Veterinary (miscellaneous) Virology Visual Arts and Performing Arts Waste Management and Disposal Water Science and Technology All regions Africa Asiatic Region Eastern Europe Latin America Middle East Northern America Pacific Region Western Europe ARAB COUNTRIES BRIICS EU-28 IBEROAMERICA LANIC NORDIC COUNTRIES OECD 1996-2022 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 Display countries with at least Documents Citable documents Cites Apply Download data Country Documents Citable documents Citations Self-Citations Citations per Document H index 1 United States 15271333 13318470 470710187 197949027 30.82 2898 2 China 9291533 9080674 120085954 70514069 12.92 1231 3 United Kingdom 4530689 3775825 129263214 27310297 28.53 1840 4 Germany 3897900 3548032 100068252 22598641 25.67 1602 5 Japan 3347987 3174415 64875161 15496330 19.38 1251 6 France 2661917 2443975 68250316 12904442 25.64 1442 7 India 2648539 2425509 31871316 10965434 12.03 812 8 Italy 2368279 2124484 55537943 12330209 23.45 1275 9 Canada 2295697 2037734 66867121 10689383 29.13 1481 10 Australia 1889159 1649784 50641555 9398256 26.81 1293 11 Spain 1862637 1699701 41775964 8420670 22.43 1154 12 Russian Federation 1596907 1549285 13954803 4696551 8.74 728 13 South Korea 1507665 1451865 27132733 4774580 18.00 879 14 Brazil 1335056 1255994 19775746 6020735 14.81 751 15 Netherlands 1273414 1133964 43606481 5911178 34.24 1305 16 Switzerland 946636 852776 33144973 3807492 35.01 1233 17 Poland 902167 853882 12365699 2795506 13.71 707 18 Sweden 861788 784502 27460448 3546526 31.86 1109 19 Turkey 842469 779735 11452625 2296105 13.59 577 20 Taiwan 839730 803978 15047497 2407862 17.92 663 21 Iran 813481 783223 10959460 3394879 13.47 463 22 Belgium 699460 632181 20968118 2353625 29.98 1015 23 Denmark 537423 483227 17892859 2137064 33.29 969 24 Austria 523442 471300 13954294 1556031 26.66 841 25 Israel 488177 440752 14235445 1630592 29.16 883 26 Malaysia 456943 434313 5652254 1210084 12.37 466 27 Mexico 450846 419131 6962680 1259825 15.44 577 28 Portugal 446897 404757 9090255 1391424 20.34 653 29 Czech Republic 442056 420933 6810651 1251878 15.41 594 30 Finland 441019 404129 12728243 1605448 28.86 815 31 Norway 434734 386771 11870200 1527981 27.30 809 32 Hong Kong 427944 393773 11949781 1246979 27.92 751 33 Greece 420758 376884 9229592 1201076 21.94 659 34 South Africa 412529 369466 7451308 1439943 18.06 614 35 Singapore 404133 367179 11293056 1039953 27.94 761 36 Saudi Arabia 359037 342343 5909500 960134 16.46 533 37 Egypt 348743 333782 4834507 1012531 13.86 388 38 New Zealand 323790 283313 8528677 1033570 26.34 686 39 Indonesia 312182 303489 1825721 499347 5.85 309 40 Ireland 287929 249884 7487270 703122 26.00 681 41 Pakistan 287560 272318 3742329 896097 13.01 394 42 Argentina 279462 259333 5362441 949535 19.19 546 43 Romania 277918 264273 2969229 557407 10.68 398 44 Thailand 277781 262376 4103702 618435 14.77 423 45 Ukraine 272840 264680 2228392 628864 8.17 349 46 Hungary 252457 235843 5068306 670673 20.08 577 47 Chile 224319 210686 4185422 729793 18.66 492 48 Colombia 169123 158142 2179168 321152 12.89 389 49 Nigeria 154264 143809 1654865 330617 10.73 291 50 Slovakia 152412 145958 2006127 335459 13.16 353 51 Croatia 143744 135420 1899101 285386 13.21 367 52 Serbia 131494 123176 1805892 278366 13.73 344 53 Slovenia 128047 120065 2376127 307469 18.56 393 54 Tunisia 124577 117440 1510548 260013 12.13 257 55 Viet Nam 120158 113930 1649564 257379 13.73 299 56 Bulgaria 108161 102846 1506502 190607 13.93 334 57 Morocco 107007 100389 1173953 232753 10.97 252 58 Algeria 104861 101330 1107989 214380 10.57 235 59 United Arab Emirates 104504 95942 1435934 145307 13.74 308 60 Iraq 100169 97728 670239 158249 6.69 182 61 Bangladesh 93916 87861 1280839 222283 13.64 285 62 Lithuania 73582 70209 1047761 155316 14.24 287 63 Jordan 70784 68138 939432 118512 13.27 242 64 Philippines 59721 54438 1010199 97306 16.92 318 65 Estonia 58283 53770 1479921 168195 25.39 375 66 Ethiopia 55801 52809 784651 179523 14.06 217 67 Kenya 55708 49644 1341513 170725 24.08 334 68 Peru 53024 48170 849126 93023 16.01 312 69 Lebanon 50718 45834 925068 73977 18.24 290 70 Belarus 50676 49312 606063 101342 11.96 226 71 Cuba 49700 46753 512509 79695 10.31 211 72 Qatar 49325 45080 942414 84126 19.11 272 73 Kazakhstan 47772 45874 347205 61547 7.27 154 74 Venezuela 47146 44514 749618 68518 15.90 269 75 Cyprus 44503 39499 879843 81946 19.77 283 76 Ecuador 43780 41295 527496 71450 12.05 213 77 Ghana 40805 37424 665084 89459 16.30 215 78 Latvia 36976 35174 511017 58958 13.82 219 79 Kuwait 36311 34174 558954 47537 15.39 212 80 Sri Lanka 34920 31882 601764 52226 17.23 245 81 Oman 32833 29831 470851 42741 14.34 200 82 Luxembourg 31455 28093 738542 49892 23.48 272 83 Iceland 30704 27253 1178674 88154 38.39 394 84 Macao 30201 28503 521015 43397 17.25 203 85 Uganda 28645 25888 641407 87447 22.39 228 86 Uruguay 28416 26203 596822 62872 21.00 235 87 Georgia 28252 25288 596399 59139 21.11 237 88 Tanzania 27882 25536 619924 78969 22.23 221 89 Nepal 27485 24725 440795 51084 16.04 193 90 Cameroon 26240 24470 468014 72741 17.84 184 91 Uzbekistan 23485 22864 161071 39056 6.86 117 92 Armenia 22661 21714 458605 72442 20.24 228 93 Puerto Rico 21486 20040 601806 27356 28.01 267 94 Azerbaijan 21405 20716 239262 39712 11.18 149 95 Bosnia and Herzegovina 20357 18778 207509 17556 10.19 141 96 Costa Rica 19530 17987 471251 39022 24.13 232 97 Macedonia 16606 15540 257726 17307 15.52 164 98 Zimbabwe 16412 14369 296339 30462 18.06 177 99 Sudan 15248 14220 222567 17576 14.60 131 100 Senegal 14688 13530 228153 22089 15.53 154 101 Malta 13056 10979 265847 15747 20.36 179 102 Palestine 12877 12060 249671 20254 19.39 142 103 Bahrain 12622 11447 194673 8950 15.42 132 104 Malawi 12102 10878 275520 30699 22.77 180 105 Botswana 11600 10177 198189 17001 17.09 137 106 Syrian Arab Republic 11265 10610 176420 12989 15.66 138 107 Panama 10928 10069 477623 33269 43.71 259 108 Moldova 10427 9873 173573 17699 16.65 143 109 Burkina Faso 10050 9509 179853 22761 17.90 135 110 Zambia 9997 8886 242442 19994 24.25 165 111 Yemen 9912 9481 152350 14517 15.37 110 112 Côte d’Ivoire 9493 8924 180514 13299 19.02 141 113 Libya 9249 8814 131598 5168 14.23 105 114 Trinidad and Tobago 8997 7857 136766 8246 15.20 125 115 Jamaica 8798 7330 168949 10492 19.20 129 116 Benin 8691 8244 196708 17415 22.63 125 117 Albania 8089 7439 84147 6612 10.40 95 118 Brunei Darussalam 8064 6930 121606 10232 15.08 121 119 Mongolia 8045 7540 125822 13786 15.64 126 120 Bolivia 7044 6439 196647 11405 27.92 161 121 Congo 6820 6199 165964 9593 24.33 139 122 Mozambique 6789 6144 203852 13082 30.03 143 123 Montenegro 6742 6316 76723 9690 11.38 88 124 Rwanda 6690 5956 147956 9260 22.12 118 125 Cambodia 6579 5863 139380 13964 21.19 135 126 Myanmar 6433 5847 108682 7693 16.89 105 127 Madagascar 6337 5955 117092 16815 18.48 120 128 Namibia 6285 5501 120677 9081 19.20 127 129 Fiji 6082 5325 128311 9047 21.10 118 130 Mauritius 5599 4923 89174 7068 15.93 118 131 Mali 5168 4784 119348 8937 23.09 131 132 Guatemala 5085 4576 105231 6212 20.69 119 133 Kyrgyzstan 4909 4456 141710 4935 28.87 116 134 Paraguay 4354 3967 81308 4364 18.67 111 135 Papua New Guinea 4218 3869 107056 7574 25.38 120 136 Laos 4128 3761 83153 8617 20.14 113 137 Gabon 3820 3558 94916 8298 24.85 125 138 Gambia 3733 3430 170224 9236 45.60 153 139 New Caledonia 3578 3350 140079 10592 39.15 127 140 Afghanistan 3453 2987 82544 2654 23.91 75 141 Monaco 3304 2948 116970 7285 35.40 137 142 Democratic Republic Congo 3279 3005 54861 2586 16.73 88 143 Niger 3210 2981 66591 4639 20.74 104 144 Togo 3205 2980 52656 2626 16.43 70 145 Dominican Republic 3177 2953 46528 2376 14.65 87 146 Barbados 3066 2527 99750 2720 32.53 107 147 Tajikistan 2947 2833 24516 3096 8.32 67 148 Honduras 2883 2641 47348 2019 16.42 84 149 Grenada 2771 2365 34333 1708 12.39 71 150 Nicaragua 2441 2238 56662 3156 23.21 105 151 Liechtenstein 2429 2173 58606 3613 24.13 112 152 French Polynesia 2411 2234 67212 5724 27.88 105 153 El Salvador 2254 2057 40392 1791 17.92 82 154 Swaziland 2225 2033 33505 1564 15.06 82 155 Sierra Leone 2220 1942 48881 3818 22.02 84 156 Greenland 1994 1851 61760 5637 30.97 94 157 Guadeloupe 1983 1835 39704 1760 20.02 84 158 North Korea 1914 1876 15071 1797 7.87 49 159 Angola 1885 1742 28648 2094 15.20 61 160 Bhutan 1883 1671 36537 2295 19.40 65 161 French Guiana 1811 1652 51919 2964 28.67 98 162 Haïti 1771 1570 37240 3134 21.03 83 163 Guinea 1663 1522 36735 1970 22.09 83 164 Faroe Islands 1293 1177 31468 2581 24.34 78 165 Guam 1283 1150 26836 1131 20.92 80 166 Liberia 1258 1080 38677 1254 30.74 69 167 Lesotho 1226 1122 14276 671 11.64 50 168 Saint Kitts and Nevis 1219 1012 14075 793 11.55 52 169 Burundi 1130 1048 24726 739 21.88 61 170 Bermuda 1105 995 53583 2562 48.49 109 171 Martinique 1096 981 35853 436 32.71 62 172 Central African Republic 1075 995 20610 1100 19.17 67 173 Mauritania 1068 1002 14107 970 13.21 54 174 Reunion 1044 959 19916 263 19.08 66 175 Bahamas 1043 933 18726 1409 17.95 65 176 Seychelles 1035 951 42693 1939 41.25 79 177 Guyana 1020 908 16412 507 16.09 61 178 Eritrea 958 887 15932 774 16.63 57 179 Chad 915 866 16650 1111 18.20 54 180 Guinea-Bissau 912 831 23709 4488 26.00 71 181 Somalia 795 718 7040 360 8.86 35 182 Suriname 759 678 17149 770 22.59 56 183 Solomon Islands 747 686 18980 1052 25.41 56 184 Belize 739 632 33834 560 45.78 60 185 Maldives 694 634 9168 758 13.21 44 186 Samoa 685 620 10679 658 15.59 45 187 Vanuatu 663 616 10899 974 16.44 50 188 Cape Verde 630 596 8579 675 13.62 43 189 San Marino 567 502 43171 483 76.14 54 190 Falkland Islands (Malvinas) 558 520 12140 1290 21.76 51 191 Dominica 513 451 8805 198 17.16 46 192 Turkmenistan 469 447 5786 544 12.34 34 193 Timor-Leste 469 402 4957 384 10.57 33 194 Netherlands Antilles 446 402 20545 218 46.07 62 195 Cayman Islands 445 401 6869 207 15.44 43 196 Djibouti 443 420 4949 417 11.17 35 197 Federated States of Micronesia 398 342 61275 495 153.96 63 198 Andorra 397 355 7549 189 19.02 40 199 Palau 350 324 7011 511 20.03 46 200 Republic of South Sudan 349 320 2214 115 6.34 23 201 Gibraltar 309 265 7179 279 23.23 39 202 Virgin Islands (U.S.) 309 291 8985 125 29.08 43 203 Equatorial Guinea 308 291 8605 513 27.94 36 204 Antigua and Barbuda 305 272 2784 79 9.13 26 205 Tonga 292 272 12235 228 41.90 35 206 Aruba 272 203 3392 50 12.47 25 207 American Samoa 247 232 5518 195 22.34 33 208 Comoros 237 217 3536 201 14.92 26 209 Saint Lucia 221 184 8940 44 40.45 31 210 Saint Vincent and the Grenadines 203 184 2665 24 13.13 26 211 Virgin Islands (British) 184 163 5564 86 30.24 36 212 Marshall Islands 164 143 2792 62 17.02 29 213 Curaçao 155 138 498 45 3.21 13 214 Anguilla 150 117 38472 165 256.48 39 215 Montserrat 147 141 4697 327 31.95 36 216 Northern Mariana Islands 131 121 1878 54 14.34 22 217 Cook Islands 128 119 3632 116 28.38 30 218 Sao Tome and Principe 124 117 1960 124 15.81 25 219 Mayotte 122 117 1089 37 8.93 16 220 Kiribati 122 110 1418 43 11.62 19 221 Turks and Caicos Islands 97 91 1799 63 18.55 25 222 Vatican City State 96 54 958 16 9.98 17 223 Saint Helena 63 59 762 16 12.10 14 224 Svalbard and Jan Mayen 62 57 917 3 14.79 15 225 Tuvalu 47 42 1117 8 23.77 15 226 Nauru 40 33 533 9 13.33 12 227 British Indian Ocean Territory 34 30 820 0 24.12 13 228 Niue 27 23 832 3 30.81 10 229 United States Minor Outlying Islands 26 22 990 0 38.08 12 230 Norfolk Island 24 19 273 0 11.38 10 231 Wallis and Futuna 24 20 166 5 6.92 8 232 South Georgia and the South Sandwich Islands 24 19 109 0 4.54 6 233 Saint Martin (Dutch) 22 21 26 0 1.18 3 234 Cocos (Keeling) Islands 14 14 254 0 18.14 6 235 Western Sahara 12 9 92 0 7.67 6 236 Tokelau 11 10 708 1 64.36 4 237 Bouvet Island 8 7 48 0 6.00 3 238 Saint Pierre and Miquelon 8 7 146 0 18.25 3 239 Christmas Island 7 7 78 0 11.14 4 240 Saint Martin (French) 7 6 9 0 1.29 2 241 French Southern Territories 6 6 182 0 30.33 5 242 Pitcairn 3 1 22 0 7.33 2 243 Heard Island and McDonald Islands 2 2 13 0 6.50 2 Metrics based on Scopus® data as of April 2023 Developed by: Powered by: Follow us on @ScimagoJR Scimago Lab , Copyright 2007-2022. 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