There are multiple definitions:

1. hepatic plasma flow(English)

   • Hepatology

2. heparin-precipitable fraction(English)

   • Thrombocyte /thrombosis

3. high-power field(English)

   • RBC

4. high-pass filter(English)

   • LPF
   • Filtering (of signals)

5. hypothalamic-pituitary failure(English)

   • manifests (Group I ovulation disorders) as hypogonadotropic hypogonadism. Females typically present with delayed or impaired pubertal development, primary or secondary amenorrhea, and infertility. May also be a common result of brain irradiation. Langerhans cell histiocytosis should be considered when more common causes are ruled out
   • Pituitary (gland), Woman /female, Gynecology, Genitals, Menstruation
   • https://doi.org…edicines7010005

6. hereditary periodic fever(English)

   • a group of diseases characterized by recurrences of fever and inflammation separated by symptom-free intervals. Familial Mediterranean fever is the most frequent entity within this group of disorders which further consists of hyperimmunoglobulinemia D and periodic fever syndrome, tumor necrosis factor receptor-associated periodic syndrome and cryopyrin-associated periodic syndrome
   • CAPS, FMF, HIDS, TRAPS
   • Inflammasome
   • https://doi.org…0238-005-0071-6