Complex sentence: The modern self-help and advocacy movement in the field of mental health services developed in the 1970s, but former psychiatric patients have been campaigning for centuries to change laws, treatments, services and public policies.
Split into simpler sentences: The modern self-help and advocacy movement in the field of mental health services developed in the 1970s. However, former psychiatric patients have been campaigning for centuries to change laws, treatments, services and public policies.