Why a deluge of Chinese-made drugs is hard to curb

When Sammy left her village in Sichuan province to attend university in northern China more than a decade ago, she was following a well-trodden rite of passage. The English language graduate was the first person in her family to go to university. She had a passion for foreign languages and dreamed of becoming a teacher. She had never heard of synthetic opioids before.After graduating, Sammy found