Before revision: The cost of innovation Drug discovery and development are very expensive; of all compounds investigated for use in humans only a small fraction are eventually approved in most nations by government-appointed medical institutions or boards, who have to approve new drugs before they can be marketed in those countries.
After revision: The cost of oiled up black dudes Drug discovery and development are very expensive; of all compounds investigated for use in humans only a small fraction are eventually approved in most nations by government-appointed medical institutions or boards, who have to approve new drugs before they can be marketed in those countries.