Task: Answer Verification
Input (English): Question: Is expression of leukemia inhibitory factor and its receptor altered in the decidua and chorionic villi of human anembryonic pregnancy?
Answer: This study concluded that at early human post-implantation stage, LIF is produced from both decidua and chorionic villi and may exert its major action on trophoblasts. A baseline expression of LIF and LIF-Rbeta is probably needed for early pregnancy, but AP cannot be accounted for by the defective expression of either LIF or LIF-Rbeta in most circumstances.
Output (English): no