Complex sentence: The Board of Editors in the Life Sciences (BELS), established in 1991, is a professional organization that awards credentials to exemplary manuscript editors in the life sciences (e.g., medicine, biology, agriculture).
Split into simpler sentences: The Board of Editors in the Life Sciences (BELS) was established in 1991. It is a professional organization that awards credentials to exemplary manuscript editors in the life sciences (e.g., medicine, biology, agriculture).