Examine individual changes

[ 0 => ''''HF''', '''Hf''' or '''hf''' can refer to:', 1 => '{{tocright}}', 2 => '==Arts and entertainment==', 3 => '* [[HammerFall]], a Swedish power metal band', 4 => '* [[Hard-Fi]], an English indie rock band', 5 => '* ''[[Star Trek: Hidden Frontier]]'', a long-running Star Trek fan-fiction series', 6 => '* [[Hi-hat]] with foot, part of a drum kit', 7 => false, 8 => '==Business==', 9 => '* HF (''hlutafélag''), a [[List of legal entity types by country#Iceland|form of limited liability company in Iceland]]', 10 => '* [[Hapag-Lloyd Flug]], a German airline (IATA code) doing business as TUIfly', 11 => '* [[Hedge fund]]', 12 => false, 13 => '==Education==', 14 => '* [[Higher Preparatory Examination (HF)]] (''Højere Forberedelseseksamen''), a Danish examination programme', 15 => '* ''[[Heraldo Filipino]]'', the student newspaper of De La Salle University-Dasmariñaslol, Cavite, Philippines', 16 => '* [[Homewood-Flossmoor High School]], Flossmoor, Illinois', 17 => false, 18 => '==Organizations==', 19 => '* [[Humanity First]], an international charitable organisation, which focuses on immediate disaster response and long term development', 20 => '* [[Health trust]] (''Helseforetak''), a Norwegian hospital enterprise', 21 => '* [[Heritage Front]], a white supremacist and Canadian Nationalist group', 22 => '* ''Hudobný fond'' (Music Fund Slovakia), a presenter of the [[ZAI Awards]]', 23 => false, 24 => '==Science and technology==', 25 => '===Biology and medicine===', 26 => '* [[Heart failure]]', 27 => '* [[Holstein Friesian cattle]], HF, a breed of cattle', 28 => '* [[Steve Biko Academic Hospital]], a hospital in Pretoria, South Africa, formerly called ''H F Verwoerd Hospital''', 29 => false, 30 => '===Chemistry===', 31 => '* [[Hafnium]], Hf, a chemical element', 32 => '* [[Hartree–Fock method]], a calculation scheme in the field of computational chemistry', 33 => '* [[Hydrogen fluoride]], HF, a diatomic compound which can dissolve in water to form hydrofluoric acid, a highly corrosive solution', 34 => '* [[Hydrofluoric acid]], HF_(aq), a solution of hydrogen fluoride (HF) in water', 35 => false, 36 => '===Other uses in science and technology===', 37 => '* [[Handsfree]], equipment that can be used without the use of hands', 38 => '* [[Helicon Filter]], photo editing software', 39 => '* [[Helicon Focus]], a photo-merging program used to increase depth of field or make panoramas', 40 => '* [[High frequency]], the ITU 3–30 MHz radio frequency range (band)', 41 => false, 42 => '==Sport==', 43 => '* Half-Forward, an [[Australian rules football positions#Centre half-forward|Australian Rules football position]]', 44 => '* [[Heinz Field]], a stadium in Pittsburgh, Pennsylvania and the home of the Pittsburgh Steelers', 45 => false, 46 => '==People==', 47 => '* [[Hendrik Verwoerd|H. F. Verwoerd]], a South African Prime Minister', 48 => false, 49 => '==Other uses==', 50 => '* Have Fun, in [[Video game culture#Slang and terminology|video game slang]]', 51 => '* [[High five]], celebratory hand gesture', 52 => '* [[Hotfix]], a software patch to temporarily fix a bug in a product', 53 => false, 54 => '{{disambiguation}}' ]