There are multiple definitions:

1. atrial natriuretic peptide(English)

   • atrial natriuretic factor (ANF)
   • ANF, BNP, CNP, NPR, ACE, AGT, ALD, Ang II, PRA, RAAS, TTTS, UCB
   • Biomarker
   • https://doi.org…1111/aogs.14859

2. advanced nurse practitioner(English)

   • RN
   • Nurse / nursing
   • https://www.nur…anp-21-01-2013/