I went Roland Chieng at Virtus. I was referred to him as he helped a couple of people I know conceive (not through IVF). He recommended me for IVF and I was first time successful. I'll also say please don't go KKH subsidized route; they wasted 2y of my life and couldn't even diagnose PCOS (Dr Chieng took 1 ultrasound during the first consult and diagnosed it, further confirming with blood test results).