What Does PHF Stand For?

PHF has more than one possible meaning :

• PHF - Paired Helical Filament
• PHF - Payload Handling Fixture
• PHF - Periodic Hartree Fock
• PHF - Personal Hygiene Facility
• PHF - Perturbative Hartree Fock
• PHF - Projected Hartree Fock

If you know of another acronym for PHF, please suggest it as a new acronym for PHF.