There are multiple definitions:

1. paroxysmal nocturnal dyspnea(English)

   • ADHF, AED, EDV, HCM, LVEF, LVM, MR, PCSR, CHF, CTR, CV, ECG, EF, LVEDV, MI
   • Sleep medicine, Cardiology, Pulmonology
   • https://doi.org…1.cir.47.5.1022
   • https://doi.org…01.cir.50.2.331

2. postnatal depression(English)

   • Depression, Obstetrics

3. postnatal development(English)

   • FRT
   • Embryology /reproduction, Experimental animal
   • https://doi.org…02682-3.00007-0

4. postnatal day(English)

   • BPA, MG, PND60
   • Neonatal situation
   • https://doi.org…tox.2014.02.001

5. perinatal depression(English)

   • affects approximately 10–15% of women, worldwide. Screening has been undertaken by a broad range of healthcare professionals in different settings
   • Depression, Neonatal situation, Screening
   • https://doi.org…jad.2015.06.015

6. prenatal diagnosis(English)

   • SDH, ß-TM
   • Pregnancy, Genetics, Diagnostics, Screening
   • https://doi.org…69.2018.1520718