• Urinary incontinence in female outpatients in Singapore. Luo R, Dai W, Tay LH, Ng FC, Koh LT International Urogynecology Journal, DOI 10.1007/s00192-017-3488-z
• Inadvertent placement of a urinary catheter into the ureter: A report of 3 cases and review of the literature. Rui Luo, Song Liang Lee, Foo Cheong Ng, Li-Tsa Koh Asian Journal of Urology Volume 4, Issue 4, October 2017, Pages 256-261
• Understanding Female Urinary Incontinence and Master Management Chapter 21: Artificial Urinary Sphincter in the Management of Severe Intrinsic Sphincter Deficiency Incontinence in Women. Koh Li-Tsa, Vincent Tse ISBN: 978-93-5090-734-4 2014
• Outcomes of long-term follow-up of patients with conservative management of asymptomatic renal calculi. Koh LT, Ng KK, Ng FC BJU International Issue: 2012 Feb;109(4):622-5.