What we now call clinical science started to flourish vigorously in the early years of the 20th
century. Within a brief decade or so several important institutions were founded, the attitudes
of leading physicians began to change, and a new awareness and expectancy affected
laymen. These various aspects helped to lay the foundation of clinical science, but they did
not come into being suddenly. Rather, they were the culmination of a long preparation,
comparable to the way a butterfly emerges after a long course of development. Earlier …