Analysis of information sources in references of the Wikipedia article "Τζουν Αλμέιντα" in Greek language version.
ASM: "This chapter first examines the refinements in electron microscopy (EM) that greatly expanded the understanding of the structure and replication of viruses and facilitated the application of EM to viral diagnosis. The refinements included thin sectioning, negative staining, and immunoelectron microscopy (IEM) developed for clinical diagnostic work. The use of EM in discovering the viral causes of acute gastroenteritis and infectious hepatitis are then considered."