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616 - Diseases 26,943 610 - Medicine and health 6,963 612 - Human physiology 6,470 615 - Pharmacology and therapeutics 5,754 618 - Gynecology, obstetrics, pediatrics, geriatrics 5,188 617 - Surgery & related medical specialties 4,663 613 - Personal health & safety 4,338 614 - Forensic medicine; incidence of disease 3,037 611 - Human anatomy, cytology, histology 1,107 619 - [Unassigned] 125 362 - Social problems and services to groups 114 081 - General collections in American English 35 599 - Mammalia 35 574 - [Unassigned] 34 312 - [Unassigned] 30 131 - Parapsychological and occult methods 20 636 - Animal husbandry 15 178 - Ethics of consumption 13 306 - Culture and institutions 12 155 - Differential & developmental psychology 10 301 - Sociology and anthropology 10 572 - Biochemistry 10 641 - Food and drink 9 363 - Other social problems and services 8 571 - Physiology & related subjects 8 573 - Specific physiological systems in animals 8 591 - Specific topics in natural history of animals 8 371 - Schools and their activities; special education 7 576 - Genetics and evolution 7 152 - Perception, movement, emotions & drives 6 158 - Applied psychology 6 338 - Production 6 150 - Psychology 5 153 - Conscious mental processes & intelligence 5 305 - Groups of people 5 629 - Other branches of engineering 5 796 - Athletic and outdoor sports and games 5 016 - Of works on specific subjects 4 092 - Block books 4 331 - Labor economics 4 791 - Public performances 4 920 - Biography, genealogy, insignia 4 942 - England and Wales 4 154 - Subconscious & altered states 3 174 - Occupational ethics 3 304 - Factors affecting social behavior 3 500 - Natural sciences and mathematics 3 547 - Organic chemistry 3 575 - Specific parts of & systems in plants 3 596 - Chordata 3 944 - France and Monaco 3 025 - Operations of libraries and archives 2 128 - Humankind 2 159 - [Unassigned] 2 320 - Political science (Politics and government) 2 344 - Labor, social, education & cultural law 2 380 - Commerce, communications, transportation 2 551 - Geology, hydrology, meteorology 2 557 - Earth sciences of North America 2 579 - Microorganisms, fungi & algae 2 590 - Animals 2 595 - Arthropoda 2 602 - Miscellany 2 620 - Engineering and allied operations 2 621 - Applied physics 2 630 - Agriculture and related technologies 2 639 - Hunting, fishing & conservation 2 646 - Sewing, clothing & personal living 2 658 - General management 2 801 - Philosophy and theory 2 808 - Rhetoric & collections of literature 2 820 - English & Old English literatures 2 909 - World history 2 940 - History of Europe 2 001 - Knowledge 1 011 - Bibliographies and catalogs 1 019 - [Unassigned] 1 020 - Library and information sciences 1 070 - Documentary, educational, news media; journalism 1 082 - General collections in English 1 083 - General collections in other Germanic languages 1 091 - Manuscripts 1 100 - Philosophy & psychology 1 126 - The self 1 142 - Critical philosophy 1 156 - Comparative psychology 1 157 - [Unassigned] 1 172 - Political ethics 1 196 - Philosophy of Spain and Portugal 1 200 - Religion 1 201 - Religious mythology & social theology 1 204 - Religious experience, life, practice 1 230 - Christianity 1 299 - Religions not provided for elsewhere 1 300 - Social sciences 1 314 - General statistics of Europe 1 328 - The legislative process 1 330 - Economics 1 340 - Law 1 345 - Criminal law 1