[1
]Department of Endocrinology; The Third Affiliated Hospital of Guangzhou Medical University;
Guangzhou Guangdong China
[2
]Key Laboratory for Major Obstetric Diseases of Guangdong Higher Education Institutes;
Guangzhou Guangdong China
[3
]Department of Cardiology; Huadu District People's Hospital of Guangzhou; Guangzhou
Guangdong China