People with rare disorders really can be called the disadvantaged among the disadvantaged, because being so few in number, they have a very small voice and receive very little attention. No wonder they are described as medical "orphans."
罕見疾病的患者堪稱弱勢中的弱勢，因為人數少、聲音小，向來不被重視，堪稱是「醫療孤兒」。