@misc{indiciae5f5b91492bf2, title = {Proper alignment of the microscope.}, author = {H E Keller}, year = {1998}, doi = {10.1016/s0091-679x(08)60424-0}, url = {https://pubmed.ncbi.nlm.nih.gov/9500136/}, note = {Source identifier: 9500136} }