D Koh

A Microcomputer Program for the Indirect Standardisation of Rates and Proportions

J Lee, D Koh, 1988, Asia-Pacific journal of public health.

Basal cell carcinoma, squamous cell carcinoma and melanoma of the skin: analysis of the Singapore Cancer Registry data 1968–97

D Koh, K. Chia, J. Lee, 2003, The British journal of dermatology.