title: The sickle cell gene in evolution: a solitary wanderer or a nomad in a caravan of interacting genes.
mesh_terms: D000755:Anemia, Sickle Cell / Q000235:genetics*; D005075:Biological Evolution; D006451:Hemoglobin, Sickle / Q000235:genetics; D006801:Humans; D044469:Racial Groups; D012805:Sickle Cell Trait / Q000235:genetics*
chemical_list: D006451:Hemoglobin, Sickle