title: Three lessons learned in Bloch's clinic.
mesh_terms: D003880:Dermatology / Q000266:history*; D006651:Histocytochemistry / Q000266:history; D006652:Histological Techniques / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007753:Laboratories / Q000266:history*; D007801:Langerhans Cells; D008544:Melanocytes; D013194:Staining and Labeling; D013557:Switzerland