title: Niche generation.
authors.affiliation: Department of Cardiovascular Surgery, Icahn School of Medicine at Mount Sinai, New York, NY. Electronic address: Joanna.chikwe@mountsinai.org.
authors.forename: Jo
authors.initials: J
authors.lastname: Chikwe
mesh_terms: D002321:Career Choice; D004503:Education, Medical, Graduate; D006801:Humans; D013038:Specialization; D013903:Thoracic Surgery / Q000193:education*