NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Patrias K, author; Wendling D, editor. Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Bethesda (MD): National Library of Medicine (US); 2007-.
Source: International Organization for Standardization. Codes for the representation of names of countries and their subdivisions. Part 1: Country codes. Geneva (Switzerland): The Organization; 1997. (ISO 3166-1: 1997).
| Country | Two-letter Abbreviation | Country | Two-letter Abbreviation |
|---|---|---|---|
| Afghanistan | AF | Laos | LA |
| Albania | AL | Latvia | LV |
| Algeria | DZ | Lebanon | LB |
| Andorra | AD | Lesotho | LS |
| Angola | AO | Liberia | LR |
| Antigua and Barbuda | AG | Libya | LY |
| Argentina | AR | Liechtenstein | LI |
| Armenia | AM | Lithuania | LT |
| Australia | AU | Luxembourg | LU |
| Austria | AT | Macedonia | MK |
| Azerbaijan | AZ | Madagascar | MG |
| Bahamas | BS | Malawi | MW |
| Bahrain | BH | Malaysia | MY |
| Bangladesh | BD | Maldives | MV |
| Barbados | BB | Mali | ML |
| Belarus | BY | Malta | MT |
| Belgium | BE | Marshall Islands | MH |
| Belize | BZ | Mauritania | MR |
| Benin | BJ | Mauritius | MU |
| Bhutan | BT | Mexico | MX |
| Bolivia | BO | Micronesia | FM |
| Bosnia and Herzegowina | BA | Moldova | MD |
| Botswana | BW | Monaco | MC |
| Brazil | BR | Mongolia | MN |
| Brunei Darussalam | BN | Morocco | MA |
| Bulgaria | BG | Mozambique | MZ |
| Burkina Faso | BF | Myanmar | MM |
| Burundi | BI | Namibia | NA |
| Cambodia | KH | Nauru | NR |
| Cameroon | CM | Nepal | NP |
| Canada | CA | Netherlands | NL |
| Cape Verde | CV | New Zealand | NZ |
| Central African Republic | CF | Nicaragua | NI |
| Chad | TD | Niger | NE |
| Chile | CL | Nigeria | NG |
| China | CN | Norway | NO |
| Colombia | CO | Oman | OM |
| Comoros | KM | Pakistan | PK |
| Congo, Democratic Republic | CD | Palau | PW |
| Congo, People’s Republic | CG | Panama | PA |
| Costa Rica | CR | Papua New Guinea | PG |
| Cote d'Ivoire | CI | Paraguay | PY |
| Croatia (Local Name: Hrvatska) | HR | Peru | PE |
| Cuba | CU | Philippines | PH |
| Cyprus | CY | Poland | PL |
| Czech Republic | CZ | Portugal | PT |
| Denmark | DK | Qatar | QA |
| Djibouti | DJ | Puerto Rico | PR |
| Dominica | DM | Romania | RO |
| Dominican Republic | DO | Russian Federation | RU |
| East Timor | TL | Rwanda | RW |
| Ecuador | EC | Saint Kitts and Nevis | KN |
| El Salvador | SV | Saint Lucia | LC |
| Equatorial Guinea | GQ | Saint Vincent and the Grenadines | VC |
| Eritrea | ER | Samoa | WS |
| Estonia | EE | San Marino | SM |
| Ethiopia | ET | Sao Tome and Príncipe | ST |
| Fiji | FJ | Saudi Arabia | SA |
| Finland | FI | Senegal | SN |
| France | FR | Serbia and Montenegro | CS |
| Gabon | GA | Seychelles | SC |
| Gambia | GM | Sierra Leone | SL |
| Georgia | GE | Singapore | SG |
| Germany | DE | Slovakia (Slovak Republic) | SK |
| Ghana | GH | Slovenia | SI |
| Greece | GR | Solomon Islands | SB |
| Grenada | GD | Somalia | SO |
| Greenland | GL | South Africa | ZA |
| Guatemala | GT | Spain | ES |
| Guinea | GN | Sri Lanka | LK |
| Guinea-Bissau | GW | Sudan | SD |
| Guyana | GY | Suriname | SR |
| Haiti | HT | Swaziland | SZ |
| Honduras | HN | Sweden | SE |
| Hong Kong | HK | Switzerland | CH |
| Hungary | HU | Syrian Arab Republic | SY |
| Iceland | IS | Tajikistan | TJ |
| India | IN | Tanzania | TZ |
| Indonesia | ID | Taiwan | TW |
| Iran | IR | Tanzania | TZ |
| Iraq | IQ | Thailand | TH |
| Ireland | IE | Togo | TG |
| Israel | IL | Tonga | TO |
| Italy | IT | Trinidad and Tobago | TT |
| Jamaica | JM | Tunisia | TN |
| Japan | JP | Turkey | TR |
| Jordan | JO | Turkmenistan | TM |
| Kazakhstan | KZ | Tuvalu | TV |
| Kenya | KE | Uganda | UG |
| Kiribati | KI | Ukraine | UA |
| Korea, Democratic People's Republic | KP | United Arab Emirates | AE |
| Korea, Republic | KR | United Kingdom | GB |
| Kuwait | KW | United States | US |
| Kyrgyzstan | KG | Uruguay | UY |