title: Problem-oriented electron microscopy in tumor diagnosis.
mesh_terms: D000368:Aged; D002276:Carcinoid Tumor / Q000648:ultrastructure; D002277:Carcinoma / Q000648:ultrastructure; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000648:ultrastructure; D008113:Liver Neoplasms / Q000648:ultrastructure; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000648:ultrastructure*; D012535:Scalp / Q000648:ultrastructure; D012878:Skin Neoplasms / Q000648:ultrastructure