Association between Parity, Carotid Plaques, and Intima Media Thickness in Northern Chinese WomenYao Yan; Liu Hua Min; Feng Xia; Li Dong; Zhou Yong; Zhang Zhi Hui*Science Citation Index Expanded南方医科大学; 山东省医学科学院; 上海交通大学摘要-关键词RISK-FACTORS ATHEROSCLEROSIS DISEASE HEALTH HEART POPULATION PREGNANCY