1.That's partly because labs are bigger, problems are more complicated, and more different subspecialties are needed.
一部原因在于现在的实验室越来越大，问题也越来越复杂，因此需要更多的学科。
2.But many of them are now going into subspecialties of internal medicine, like cardiology and oncology.
他们有很多人进入内科附属专业，如心脏病学和肿瘤学。
3.Discussion effects upon patient care in units with subspecialties
立体收住病人的实施与护理应对