Adverse effects 1 Chemotherapy 1 Chronic Disease 1 Chronic diseases 1 Chronic diseases--chemotherapy 1 Disease 1 Drug abuse 1 Drug therapy 1 Drug-Related Side Effects and Adverse Reactions 1 Drugs 1 Juvenile literature 1 Pharmaceutical Preparations 1 Physiological aspects 1 Physiological effect 1 Popular works 1 Substance Use Disorders 1 Substance abuse 1 Substance abuse--physiological aspects Substance-Related Disorders 1 adverse effects 1 drug therapy 1 popular works 1