May God bless you and your...
I am very deeply saddened to hear of Dr. McCallum's passing. Although we never met in person, I spoke with him regarding projects related to aging research and was greatly inspired by his knowledge and energy. My sincere condolences to his sons, family members, students and colleagues. Rest in peace, TJ... your light remains an inspiration to the world.
Patricia Bach
February 25, 2018 | Roseville, CA | Friend


