What were some achievements of the Muslim doctors?

raised the dignity of the medical profession from that of menial calling to the rank of one of the learned professions; they were the first to introduce systematically arranged illustrations in their medical writings, and also gave us their system of numbering which has all but replaced the cumbersome Roman numerals. They also developed the science of chemistry as applied to medicine, and considerably improved the art of dispensing by the introduction of such elegant preparations as rose and orange water.