Japan-EMNet Research Fellowship


  • Train future leaders in medical research in Japan and the U.S.
  • Bridge Japan and the U.S. through training Japanese researchers


Build the fundamentals and network to become medical researchers by using the curriculum, training experience, resource, and global network in the Hasegawa-lab and EMNet.

Approximately 2-3 years of duration. The model curriculum is:
First year:
— Gain the fundamentals of epidemiology and biostatistics through didactics of the MS (Epidemiology, Biostatistics, Computational Biology, Health Data Science) or MPH program at Harvard School of Public Health
— In parallel, analyze large databases at the EMNet (on-the-job training)
— Learn academic writing through publications and grant applications
— No clinical training

Second-third year(s): Develop and conduct own research projects (from the development of project, team, study protocol, IRB application, grant application, quality control, data cleaning, analysis, to publications) under direct mentoring.


— MD, MD/PhD, or PhD
— No restrictions of specialty (not limited to emergency medicine)
— Candidates with external funding support (e.g., scholarship, grants) are highly considered and have a higher chance of acceptance


Fellowship Director / PI:  Kohei Hasegawa (email: koheihasegawamd[@]gmail.com)

Current Fellows:

Yoshihiko Raita, MD, MPH (耒田善彦), MMSci candidate at Harvard Medical School: 2018-

Michimasa Fujiogi, MD: 2019-

Past Fellows:
1) Tadahiro Goto, MD, MPH (後藤匡啓;  tadahirogoto[@]gmail.com) : 2015-2018.
Currently at the University of Tokyo.

Summary of achievements:
— American College of Emergency Physicians Scientific Assembly 2015: Excellence in Research Award (Best Paper).
— Comparing Ran-Out Status of Inhaled Short-Acting Beta-Agonists in Emergency Department Patients with Acute Asthma: 1996-1998 versus 2015-2017. J Allergy Clin Immunol Pract. 2018 Feb 14.
— Obesity and severity of acute exacerbation of chronic pulmonary disease. Ann Am Thorac Soc. 2017 Oct 20.
— Reduced risk of acute exacerbation of COPD after bariatric surgery. Chest. 2017
— Association of bariatric surgery with risk of infectious diseases: A self-controlled case series analysis. Clin Infect Dis. 2017;65(8):1349-1355
— Infectious Disease-related Emergency Department Visits Among the Elderly in the United States. Am J Geriatr Soc. 2016;64(1):31-36
— Sex Differences in the Risk of Hospitalization among Patients Presenting to U.S. Emergency Departments with Asthma Exacerbation. J Allergy Clin Immunol Pract. 2016;4(1):149-151
— Prevalence of Pulmonary Embolism in Patients with Syncope. JAMA Intern Med. 2018 Mar 1;178(3):356-362

2) Atsushi Hirayama, MD, MPH (平山敦士; email:atsushihirayamamd[@]gmail.com): 2016-2018.
Currently at the National Cerebral and Cardiovascular Center.

Summary of achievements:
— Association of obesity with severity of heart failure exacerbation: A population-based study. J Am Heart Assoc 2018 Mar 15;7(6).
— Hirayama A, Goto T, Faridi MK, Camargo CA Jr., Hasegawa K. Age-related differences in the rate and diagnosis of 30-day readmission after hospitalization for acute ischemic stroke. Int J Stroke 2018 Jan 1 [Epub ahead of print]
— Hirayama A, Goto T, Faridi MF, Camargo CA Jr., Hasegawa K. Association of obstructive sleep apnea with acute severity of chronic obstructive pulmonary disease exacerbation: A population-based study. Intern Med J 2018; in press