PAST [HKCEE/HKAL]: PHY+CHEM+BIO [Maths stream/BIO stream] -> Medicine is only for Science students
CURRENT [DSE]: CHEM [MUST] + Your TWO favourable subjects e.g history, chinese history, Eng Lit, BAFS, ECON, ICT --> Mark is the only criteria. Don't care whether you kid takes phy or biology