Mary L. Marazita

  • Director, Center for Craniofacial and Dental Genetics; Professor of Oral Biology and of Human Genetics, University of Pittsburgh
Joaquin Phoenix won the award for outstanding performance by a male actor in a leading role for ‘Joker’ at the 26th annual Screen Actors Guild Awards. Jordan Strauss/Invision via AP

Joaquin Phoenix’s lips are not like Napoleon’s − here’s what everyone should know about cleft lip

Joaquin Phoenix has previously been mocked for a facial scar that some have assumed is a cleft lip. Two geneticists and a surgeon explain what causes this common birth defect.

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  • Location: Pittsburgh, Pennsylvania, U.S.
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