Alex Tiong Heng Sia

A118G Single Nucleotide Polymorphism of Human μ-Opioid Receptor Gene Influences Pain Perception and Patient-controlled Intravenous Morphine Consumption after Intrathecal Morphine for Postcesarean Analgesia

Alex Tiong Heng Sia, Yvonne Lim, Eileen C.P. Lim et al. · Anesthesiology · 2008 · 294 citations · Full text

Medicine, Anesthesiology, Pharmacology +14

A Comparison of a Basal Infusion with Automated Mandatory Boluses in Parturient-Controlled Epidural Analgesia During Labor

Alex Tiong Heng Sia, Yvonne Lim, Cecilia E. Ocampo · Anesthesia & Analgesia · 2007 · 106 citations

Medicine, Anesthesiology, Obstetrics +16

Retrieval augmented generation for 10 large language models and its generalizability in assessing medical fitness

Yu He Ke, Liyuan Jin, Kabilan Elangovan et al. · npj Digital Medicine · 2025 · 102 citations · Full text

Computing, Computer Science, Surgery +15

Automated regular boluses for epidural analgesia: a comparison with continuous infusion

Y. Lim, Alex Tiong Heng Sia, C. E. Ocampo · International Journal of Obstetric Anesthesia · 2005 · 95 citations

Veterinary Medicine, Anesthesiology, Surgery +12

A randomized comparison of automated intermittent mandatory boluses with a basal infusion in combination with patient-controlled epidural analgesia for labor and delivery

Seo‐Wei Leo, C. E. Ocampo, Y. Lim et al. · International Journal of Obstetric Anesthesia · 2010 · 95 citations

Medicine, Anesthesiology, Obstetrics +17