Complex sentence: Genie was extremely pale and severely undersized and underweight for her age, standing and weighing only, and upon admission to Children's Hospital had nearly two full sets of teeth in her mouth and a distended abdomen.
Split into simpler sentences: Genie was extremely pale and severely undersized and underweight for her age, standing and weighing only. Upon admission to Children's Hospital, she had nearly two full sets of teeth in her mouth and a distended abdomen.