Physiology: United unto Death

In the world they made for themselves, Siamese Twins Margaret and Mary Gibb were not only accustomed to their affliction. They came to prefer it. As adults they refused even to discuss the possibility of separation. To them, such a move would have seemed no less than amputation of a major limb. In recent weeks their feeling haunted their physician, Dr. John Appel, because though Mary seemed entirely healthy, Margaret was suffering from rapidly spreading cancer. But the sisters did not change their view, and last week when Margaret's cancer had spread...

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