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Social Security Bulletin|September 18, 1999
Retirement income security in the United KingdomL Liu
Social Security Bulletin|October 20, 2001
Public pension reform in JapanL Liu
Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica|February 1, 1997
[Treatment of hard seeds of some plants with sulphuric acid]L Liu
Vision Research|November 20, 2001
Can the amplitude difference spectrum peak frequency explain the foveal crowding effect?L Liu
Social Security Bulletin|January 1, 1993
Income security in transition for the aged and children in the Soviet Union and in the Russian FederationL Liu
[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology|May 1, 1993
[An immuno-pathological study of pterygium]L Liu
[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology|September 1, 1989
[Neodymium YAG laser iridotomy]L Liu
[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology|September 1, 1991
[Computerized image analysis of normal optic discs]L Liu
[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology|November 1, 1990
[A genetic and clinical study of retinoblastoma in twins]J L Liu
Zhonghua Yu Fang Yi Xue Za Zhi [Chinese Journal of Preventive Medicine]|January 1, 1993
[The study of oxidative injury of alveolar macrophage in the development of silicosis]B L Liu
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