How is hyperemesis gravidarum pronounced?

How do you pronounce HG?

What does the word hyperemesis mean?

Excessive vomiting
[ hī′pər-ĕm′ĭ-sĭs ] n. Excessive vomiting.

How do you say Cholecystalgia?

How do I pronounce ng?

How do you spell MMHG?

“Mm Hg.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mm%20Hg.