This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
[{'content': 'PAP smear is invented by : \nSelect and explain. \nA. John papanicolaou, B. George papanicolaou, C. Vladimir papanicolaou, D. Ben papanicolaou', 'role': 'user'}, {'content': "Answer: B \nExplanation: Routine cytological screening or Pap smear should be offered to all women above the age of 21 years who are sexually active for at least 3 years.In all women with abnormal Pap tests showing mild dysplasias, it is impoant to treat any accompanying inflammatory pathology and repeat the Pap test. If it persists to be abnormal, colposcopic examination are to be considered. Shaw's Textbook o gynaecology 16th edition page 488", 'role': 'assistant'}]