Our Services Knowledgeable. Experienced. Caring. Dr Tan Heng Hao 5 Services Quality specialist care and fertility services —from screening to treatment. Fertility Screening Ovulation Induction Elective Egg Freezing (EEF) In-vitro Fertilisation (IVF) Artificial Insemination (IUI) Intracytoplasmic Sperm Injection (ICSI) Time-lapse Embryo Culture Blastocyst Transfer Programme Embryo Cryopreservation Fertility Surgery Surgical Sperm Retrieval (SSR) Minimally Invasive Keyhole Surgery