ccording to Essential Science Indicators, among the 146 top-performing countries in all fields, Iran ranked #49 for citations, #42 for papers, and #135 for citations per paper. The tables below contain rankings of all fields in Iran. SOURCE: Essential Science Indicators from the September 1, 2006 update update covering a ten-year plus 6-month period, January 1996-June 30, 2006.

10-Year Country Rankings for: Iran
Total for Iran:	Papers	Citations	Citations Per Paper
	#42	#49	#135
Rank for Iran among the 146    top performing countries:	21,661	63,519	2.93
Iran's most cited paper.

Rank	FIELD	PAPERS	CITATIONS	CITATIONS PER PAPER
1	CHEMISTRY	6,609	27,639	4.18
2	PHYSICS	2,080	8,247	3.96
3	CLINICAL MEDICINE	2,188	6,248	2.86
4	ENGINEERING	3,236	6,052	1.87
5	PHARMACOLOGY & TOXICOLOGY	622	2,207	3.55
6	PLANT & ANIMAL SCIENCE	1,262	1,963	1.56
7	MATERIALS SCIENCE	1,073	1,885	1.76
8	BIOLOGY & BIOCHEMISTRY	610	1,578	2.59
9	NEUROSCIENCE & BEHAVIOR	308	1,209	3.93
10	AGRICULTURAL SCIENCES	469	998	2.13
11	GEOSCIENCES	471	879	1.87
12	MATHEMATICS	844	812	0.96
13	ENVIRONMENT/ECOLOGY	311	808	2.60
14	MOLECULAR BIOLOGY & GENETICS	147	635	4.32
15	IMMUNOLOGY	153	538	3.52
16	PSYCHIATRY/PSYCHOLOGY	137	495	3.61
17	COMPUTER SCIENCE	506	391	0.77
18	SPACE SCIENCE	127	279	2.20
19	SOCIAL SCIENCES, GENERAL	168	209	1.24
20	ECONOMICS & BUSINESS	34	40	1.18
SOURCE: Essential Science Indicators.

Number of Citations (In 5-year Intervals):

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Average Citations per Paper (In 5-year Intervals):

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SOURCE: Essential Science Indicators