Complex sentence: She then practised medicine in partnership with Elsie Inglis, providing care for poorer women in a "hospice" which was the forerunner of the Elsie Inglis Memorial Maternity Hospital.
Split into simpler sentences: She then practised medicine in partnership with Elsie Inglis. They provided care for poorer women in a "hospice" which was the forerunner of the Elsie Inglis Memorial Maternity Hospital.