1. Time of symptom onset of eight common medical emergencies;Hao;J Emerg Med,1995
2. Neurobiology of sleep and human colonic motor patterns [letter];Friedman;Gastroenterology,1995
3. Neurobiology of depression and reduced heart rate variability in coronary artery disease [letter];Friedman;Am J Cardiol,1996
4. Speech pauses and diagnosis [letter];Friedman;J Clin Psychiatr,1991
5. Neurobiology of functional bowel disorders in women with dysmenorrhea [letter];Friedman;Am J Gastroenterol,1995