Quantifying stiffness and forces of tumor colonies and embryos using a magnetic microrobot. - Erfan Mohagheghian; Junyu Luo 005; F. Max Yavitt; Fuxiang Wei; Parth Bhala; Kshitij Amar; Fazlur Rashid; Yuzheng Wang; Xingchen Liu; Chenyang Ji; Junwei Chen; David P. Arnold; et al. (Sci. Robotics, 2023)