a specialist in gerontology.
专攻老年病学的医生。

Gerontology has suddenly become popular.
老年学突然变得受欢迎了。

They're what I'm calling here the gerontology approach and the geriatrics approach.
这两种方法就是老年学和老年医学。

Gerontology is the study of the social, psychological and biological aspects of aging.
老人学是一门研究衰老的社会，心理和生物问题的学科。

The International Association of Gerontology held its eighteenth congress in Rio de Janeiro in June2005.
国际老年学协会第十八届大会2005年6月在里约热内卢举行。

His teaching and ideas have spread considerably beyond spiritual life, influencing theater, the visual arts, mental health care, business management, gerontology, and hospice work.
的菩萨精神, 在当时, 在今日, 都是颇受争议和误解的。