Clasificación de la Biblioteca del CongresoQR1-502

agriculture(26) aids(51) allergy(6) anatomy(47) biography(295) biological(5) biological warfare(14) biology(1,636) body(130) cancer(22) cells(31) chemistry(51) children(88) children's(98) diet(26) disease(317) dna(13) doctor(17) doctors(15) E. coli(27) ecology(47) environment(27) epidemiology(101) evolution(121) food(98) general science(16) genetics(89) germs(484) green(24) health(969) history(277) history of medicine(68) history of science(86) hiv/aids(22) human(12) human anatomy(11) humans(10) illness(94) infections(13) informational(62) informative(16) insects(28) juvenile(55) kids(31) Lab(62) life science(75) Life Sciences(30) malaria(11) medical(278) medical science(9) medicine(819) molecular biology(63) natural science(36) nature(75) nursing(37) nutrition(71) pandemic(36) Pelican(12) physiology(37) picture book(181) plague(18) popular science(92) public health(41) rabies(8) reference(145) research(40) science(3,163) science and technology(11) science nonfiction(34) science writing(13) scientists(57) sick(44) sickness(39) skin(14) symbiosis(25) text(49) undergrad(10) viruses(226)