Classification Types: A New Feature in the SPECIALIST Lexicon. - Chris J. Lu; Amanda Payne; Dina Demner-Fushman (AMIA, 2019)

Enhanced Features in the SPECIALIST Lexicon - Antonyms. - Chris J. Lu; Amanda Payne; James G. Mork (AMIA, 2020)

The Unified Medical Language System SPECIALIST Lexicon and Lexical Tools: Development and applications. - Chris J. Lu; Amanda Payne; James G. Mork (J. Am. Medical Informatics Assoc., 2020)

Identifying Criteria for Antonym Generation from Collocates in Corpora. - Chris J. Lu; Amanda Payne; James G. Mork (AMIA, 2021)

Proper filter usage to retrieve multiwords from the MEDLINE n-gram set: Reply to the Turki et al commentary "Enhancing filter-based parenthetic abbreviation extraction methods". - Chris J. Lu; Amanda Payne; James G. Mork (J. Am. Medical Informatics Assoc., 2021)