{"stem":{"id":20456,"name":"metastasis to kidney","question":"Metastasis to kidney can be caused by all below EXCEPT:","type":"1"},"option":[{"id":2188,"name":"Carcinoma of cervix","answer":0},{"id":2167,"name":"Choriocarcinoma","answer":0},{"id":5543,"name":"Carcinoma of pancreas","answer":0},{"id":25147,"name":"Multi-system injury","answer":1}]}