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Results 1 - 1 of 1 for Cleft upper lip
  1. Cleft Lip and Palate (National Library of Medicine)  
    ... cleft lip, a cleft palate, or both. A cleft lip happens if the tissue that makes up the lip does not join completely before birth. This causes an opening in the upper lip. The opening can be a small slit ...
    https://medlineplus.gov/cleftlipandpalate.html - Health Topics