@misc{indiciae9f2d6ce7ba94, title = {Lymphocyte differentiation and its microenvironment in the human thymus during aging.}, author = {G G Steinmann and H K Müller-Hermelink}, year = {1984}, url = {https://pubmed.ncbi.nlm.nih.gov/6431270/}, note = {Source identifier: 6431270} }