Thermal energy contained in the earth. It can be used directly to supply heat or converted to mechanical or electrical energy. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Inland bodies of still or slowly moving FRESH WATER or salt water, larger than a pond, and supplied by RIVERS and streams.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
Travel to another country for the purpose of medical treatment.
The group in which legal authority is vested for the control of health-related institutions and organizations.
Physicians who serve in a medical and administrative capacity as head of an organized medical staff and who also may serve as liaison for the medical staff with the administration and governing board.
Organizations which certify physicians and dentists as specialists in various fields of medical and dental practice.
WHO regional office for the Americas acting as a coordinating agency for the improvement of health conditions in the hemisphere. The four main functions are: control or eradication of communicable diseases, strengthening of national and local health services, education and training, and research.