The Mildred S. Christian Career Achievement Award

ATS established the Mildred S. Christian Career Achievement Award to honor the memory of Dr. Christian, known to many as “Millie.” She gave much of her time and financial resources to the Academy and helped to make the ATS into an efficient and scientifically recognized organization. Many of the policies and practices used today benefit from her efforts.

The award is conferred upon an ATS Fellow who has clearly demonstrated a lasting impact on toxicological sciences. The criteria for the award include, but are not limited to, the following:

  1. The awardee must be an ATS Fellow in good standing as either a full ATS Fellow or ATS Emeritus. A Fellow that is a current member of the Board of Directors of ATS is not eligible to receive the award.
  2. The awardee must have demonstrated extraordinary scientific achievement through publications, professional activities, and/or leadership that have enhanced the practice of toxicology as judged by the Board of Directors.


The ATS Board of Directors is requesting nominations from the ATS Fellows for the 2021 Mildred S. Christian Award.

All nominations for the 2021 award must be submitted on the official ATS Mildred Christian Award Nomination form, available by clicking on the link below.  While the candidate’s CV must accompany the nomination form, the nominator must also describe on the form how they believe their candidate meets the criteria for the award.  Only one secondary letter per candidate is requested.  If more are submitted in addition to the one listed on the nomination form, the Awards Committee will consider these at their discretion.  Note that nominations submitted in 2019 do not need to be resubmitted.

If you believe an ATS Fellow meets the criteria for this award, we request that you submit the nomination form along with the nominee’s biographical information (complete CV if possible) to Susie Masten at for the Board’s consideration. The deadline for receipt of nominations and secondary letters for the 2021 award is November 1, 2020.

Mildred Christian Award Nomination Form Link


2020 Award Recipient

Samuel M. Cohen, MD, PhD, ATS, DABP



Samuel M. Cohen earned his MD and PhD degrees from the University of Wisconsin (1972) and became board certified in anatomic and clinical pathology in 1976.  He was a visiting professor at Nagoya City University, Japan (1976-7), a staff pathologist at St. Vincent Hospital, Worcester, MA and associate professor at U. Massachusetts Medical School, 1977-81, before becoming professor of Pathology and Microbiology and Professor at the Cancer Center at the University of Nebraska Medical Center (UNMC) in 1981. He was vice –chair of the department from 1981 to 1992 and then as chairman (1992-2007). He has been active in chemical carcinogenesis research since 1964, with a focus on the role of cell proliferation and using primarily models of urinary bladder cancer.  This research has resulted in more than 400 publications. He has also been active in the mentoring of graduate students and post-doctoral fellows, as well as initiating the MD-PhD program at UNMC and serving as director of the pathology residency program.

Dr. Cohen has been a member of numerous NIH, US EPA, US FDA, WHO, IARC, and NAS scientific panels, was a member of the NTP Board of Scientific Counselors (BSC) and the NIEHS BSC, and served on the Board of Trustees of the International Life Sciences Institute and the Health and Environmental Sciences Institute. He is currently serving on the US EPA Science Advisory Board and the FEMA Expert Panel for evaluation of flavor ingredients. He was recipient of the SOT’s Merit Award (2017) and Arnold J. Lehman Award (2001), Distinguished Scientist in Cancer Research by the Japanese Foundation for Cancer Research (2004), the George H. Scott Award from Toxicology Forum (2012), Lifetime Achievement Award from the Association for Environmental Health and Science (2012), Lifetime Achievement Award from the Society of Toxicologic Pathology (2015), and the Distinguished Scientist Award from the American College of Toxicology (2016). He has been active in the Academy of Toxicological Sciences since 2000, including service on the Board of Directors. He also continues as an active surgical pathologist.



To see past award recipients, click here