Complex sentence: After his expulsion, Soedjatmoko moved to Surakarta and studied Western history and political literature, which led to an interest in socialism; he also worked at his father's hospital.
Split into simpler sentences: After his expulsion, Soedjatmoko moved to Surakarta and studied Western history and political literature, which led to an interest in socialism. During in Surakarta he also worked at his father's hospital.