要喺一個地方做醫生，首先要對嗰笪地方嘅風土病有基本嘅認識，例如香港人好常見嘅蠶豆症，喺英國畢業嘅醫生，就未必識嘞。
To become a doctor in a place, you must first have a basic understanding of the local hermetic diseases, such as fava bean disease, which is very common in Hong Kong, and doctors who graduated in the United Kingdom may not understand it.