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The advance of medical knowledge is not always (i) _____: on the contrary,it is often the result of (ii)_____In the 1830s, groups of doctors began to question long-enshrined treatments such as bleeding, cupping, and purging, eventually discovering that many ailments were more effectively treated by nothing more than bed rest,nutrition,and observation. This news must have been (iii)____ to those with a vested interest in the medical orthodoxy of the time.
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