@misc{indiciae99b602de3fbf, title = {Knowledge engineering for a clinical trial advice system: uncovering errors in protocol specification.}, author = {M A Musen and J A Rohn and L M Fagan and E H Shortliffe}, year = {1987}, url = {https://pubmed.ncbi.nlm.nih.gov/3620734/}, note = {Source identifier: 3620734} }