网站简介：美国国立卫生研究院(简称NIH)是美国最高水平的医学与行为学研究机构，初创于1887年，任务是探索生命本质和行为学方面的基础知识，并充分运用这些知识延长人类寿命，以及预防、诊断和治疗各种疾病和残障。NIH在近几十年取得的研究成果极大的改善了人类的生命健康状况。
网站简介：National Library of Medicine's medline and pre-medline database.
网站简介：Clinical experts provide current medical information and news on health topics.
网站简介：NIH repository for peer-reviewed primary research reports in the life sciences. View the full text of articles online.
网站简介：Features medical journal articles, images, case reports, medical news, free Medline, CME, and drug searching.
网站简介：HealthGrades是一家医疗质量在线评定和服务公司，此次它依照26项医疗标准程序和条件对一亿四千万份病历严格筛选评定的前50强医院,在过去的11年里都向社会提供了优质而持久的医疗服务。
网站简介：[USA] A not-for-profit organization serving members in several states and Washington, DC. It operates as a working partnership of two organizations: Kaiser Foundation Health Plan and Hospitals, and the Permanente Medical Groups.
网站简介：Find medical professionals, in your area, and book an appointment.
网站简介：Dedicated to helping persons who face cancer. Supports research, patient services, early detection, treatment and education.
网站简介：A nonprofit forum. We help students become doctors: from audiology to veterinary medicine.
网站简介：Electronic version of the BMJ. Publish accessible information that will help doctors improve their practice and will influence the international debate on health. Access is free to all.
网站简介：Offers health and specialty information, research and clinical trials, news, and educational programs.
网站简介：Network of hospitals and doctors serving more than 100 communities in Northern California. Includes health information and locator for hospitals, physicians and services.
网站简介：Find, rate or check up on a doctor in the United States. Search by location, specialty or ailment.nt.
网站简介：American Academy of Family Physicians represents more than 94,000 family physicians, family medicine residents, and medical students.
网站简介：Site has a comprehensive search function to locate any information related to the institutions. (Baltimore)
网站简介：Providing services, including genomic testing, through a network of primary testing locations. Includes information on continuing medical education and connectivity solutions.
网站简介：A weekly journal that publishes articles on new medical research findings, reviews, and other editorials.
网站简介：Their mission is to prevent and cure diabetes and to improve the lives of all people affected by this disease. Available in English and Spanish.
网站简介：Searchable database which provides patients, family members and the public with information about current ongoing clinical research studies. From the U.S. National Library of Medicine.
网站简介：A not-for-profit organization which includes hospitals, health plans, clinics, physicians, long-term care facilities, low-income housing, assisted living, home care, and hospice, advanced medical research and education, and community outreach programs in Alaska, Washington, Oregon, and California.
网站简介：Nonprofit group of medical schools, teaching hospitals, and academic societies. Provides assistance for members in the areas of education, research, and patient care.
网站简介：Search for a doctor in the United States, by name, location or specialty.
网站简介：Provides services and products to health care providers and payors including pharmaceuticals and supplies to sophisticated medical workflow solutions.
网站简介：Based in Boston the System is comprised of hospitals, primary care and specialty physicians, community health centers and other health-related entities. (Massachusetts)