It is reported that the national first-class new drug neural tube defect gene detection (PCR-RFLP) kit developed based on this technology has received official production approval from the State Food and Drug Administration and is expected to enter thousands of households in March this year. The required fee is approximately 300 yuan. Relevant experts told reporters that those being tested must meet two conditions: first, they must be in a contraceptive state; second, they must be in a contraceptive state. Another is to take the test at least 3 months before pregnancy