|Cyclical neutropenia is also known as cyclic neutropenia, a form of neutropenia which is a granulocyte disorder characterized by an abnormally low number of neutrophils. This tends to occur for every three weeks and lasts from three to six days due to changing rates of cell production by the bone marrow.The open access journals are peer reviewed scholarly journals of Automatic Control of Physiological State and Function. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in SCOPUS, COPERNICUS, CAS, EBSCO and ISI.