Complex sentence: Many non-accredited programs do not emphasize surgery of the lateral skull base, but many of these one-year programs do offer training in acoustic neuromas, glomus jugulare and other skull base surgeries.
Split into simpler sentences: Many non-accredited programs, however, do not emphasize surgery of the lateral skull base, such as acoustic neuromas. However, many one-year programs do offer training in acoustic neuromas and other skull base surgeries.