Nur, A. M., Memon, A. B., Abubakari, A. G., Memon, A. Q., & Khawaja, A. R. (2026). Sleep-duration extension and midpoint displacement in United States adults: joint classification and survey measurement constraints. Multidisciplinary Healthcare Journal, 1(1). https://doi.org/10.68608/1g633821 (Original work published 2026)