ACE and hydrops fetalis: Another commonly analysed parameter was medication, including drugs prescribed for HF such as angiotensin converting enzyme inhibitors (ACEI), beta‐blockers, angiotensin receptor blockers (ARBs) or diuretics.14, 15, 16, 17, 19, 21, 23, 26, 27, 30, 33, 34, 36, 37, 41, 42, 43, 47, 48