Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

My NCBI Filters
Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1982 1
1984 1
1988 3
1989 1
1992 1
1993 2
2023 0
Text availability
Article attribute
Article type
Publication date

Search Results

9 results
Results by year
Filters applied: . Clear all
Page 1
Metals in hair as biological indices for exposure.
Foo SC, Khoo NY, Heng A, Chua LH, Chia SE, Ong CN, Ngim CH, Jeyaratnam J. Foo SC, et al. Among authors: ngim ch. Int Arch Occup Environ Health. 1993;65(1 Suppl):S83-6. doi: 10.1007/BF00381312. Int Arch Occup Environ Health. 1993. PMID: 8406944
Mercury in scalp hair of healthy Singapore residents.
Foo SC, Ngim CH, Phoon WO, Lee J. Foo SC, et al. Among authors: ngim ch. Sci Total Environ. 1988 Jun 15;72:113-22. doi: 10.1016/0048-9697(88)90010-1. Sci Total Environ. 1988. PMID: 3406725