Complex sentence: Doctors informed him of the extent of tissue damage, causing Liddell anxiety about his future, and he remained in Blackburn for two weeks, living in the family home of a colleague, before he could return to Liverpool to continue his recovery.
Split into simpler sentences: Doctors informed him of the extent of tissue damage, causing Liddell anxiety about his future. He remained in Blackburn for two weeks, living in the family home of a colleague, before returning to Liverpool to continue his recovery.