Second cousins with cystic fibrosis and no common ancestor who is a carrier.
Ten Kate
L P
LP
D003550:Cystic Fibrosis / Q000235:genetics*; D019005:Cystic Fibrosis Transmembrane Conductance Regulator / Q000235:genetics*; D006579:Heterozygote; D006801:Humans
C505032:CFTR protein, human; D019005:Cystic Fibrosis Transmembrane Conductance Regulator