@article{aaac14fa19414c76a6e64b50b80c5ce7,
title = "More Sub-Subs Are Coming!",
author = "Dalen, \{James E.\} and Ryan, \{Kenneth J.\} and Alpert, \{Joseph S.\}",
note = "Funding Information: By the late 1950s and early 1960s, fellowships had been established in several fields in addition to internal medicine. Fellows were termed research fellows, and many were supported by National Institutes of Health stipends. It was assumed that the majority would enter academic medicine. 3 By the 1970s, it had become clear that most research fellows were entering private practice as subspecialists rather than choosing academic medicine. 3 ",
year = "2019",
month = feb,
doi = "10.1016/j.amjmed.2018.07.031",
language = "English (US)",
volume = "132",
pages = "132--133",
journal = "American Journal of Medicine",
issn = "0002-9343",
publisher = "Elsevier Inc.",
number = "2",
}