title: First-year experience in new postgraduate clinical training system.
authors.forename: Shigeaki
authors.initials: S
authors.lastname: Aoyagi
mesh_terms: D004503:Education, Medical, Graduate / Q000639:trends; D006801:Humans; D007396:Internship and Residency; D007564:Japan; D013903:Thoracic Surgery / Q000193:education; D000078329:Workforce