By clicking and dragging, the planet is rotated and the Sun is rotated to a viewing angle. The bottom view shows areas of equal size (small squares) passing through this viewpoint on the Sun. By clicking on one of these little squares and clicking on the corresponding start point, the orbits of the planets in the first view can be changed, enabling the user to test other working theories of planetary motion for this system.Serial International Thoracic Transplant Registry: Leading bilateral lu
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