Which poem does this come from? What does the whole poem mean?

From a poem in which modern people praise doctors. The whole poem is:

Your face is fortunate to be polite, and reading Huazhang is refreshing.

Make the ink clear and beautiful, and glow with apricot trees.

Swear is shallow and shameful, and elegant sentences are as expensive as gold.

Old Fengshan's deep voice is warmer, and his voice sings the main theme.

Translation:

It's an honor to know you politely, and it's also a pleasure to read your literary masterpiece. Your masterpiece is outstanding in the literary world, and your superb medical skills are second to none in the medical field. The shallow truth of popular language is vividly on the paper, and the meaning of good sentences is more precious than gold. As if the phoenix in the mountain is singing, every sentence is a wonderful melody.