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Ng TP, Ng YL, Lee HS, Chia KS, Ong HY.Ng TP, et al. Among authors: ng yl.Br J Ind Med. 1992 Jan;49(1):35-7. doi: 10.1136/oem.49.1.35.Br J Ind Med. 1992.PMID: 1370761Free PMC article.
Chia KS, Ng TP, Jeyaratnam J.Chia KS, et al. Among authors: ng tp.Am J Ind Med. 1992;22(2):155-62. doi: 10.1002/ajim.4700220203.Am J Ind Med. 1992.PMID: 1329507
Ng TP, Phoon WH, Lee HS, Ng YL, Tan KT.Ng TP, et al. Among authors: ng yl.Ann Acad Med Singap. 1992 May;21(3):305-11.Ann Acad Med Singap. 1992.PMID: 1416775
Ng TP, Phoon WH, Lee HS, Ng YL, Tan KT.Ng TP, et al. Among authors: ng yl.Ann Acad Med Singap. 1992 May;21(3):312-7.Ann Acad Med Singap. 1992.PMID: 1416776
Ng TP, Goh HH, Ng YL, Ong HY, Ong CN, Chia KS, Chia SE, Jeyaratnam J.Ng TP, et al. Among authors: ng yl.Br J Ind Med. 1991 Jul;48(7):485-91. doi: 10.1136/oem.48.7.485.Br J Ind Med. 1991.PMID: 1906733Free PMC article.
Lee HS, Ng TP, Ng YL, Phoon WH.Lee HS, et al. Among authors: ng yl, ng tp.Br J Ind Med. 1991 Apr;48(4):275-8.Br J Ind Med. 1991.PMID: 2025595Free PMC article.