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Micrograph showing decidualization of the endometrium (as also seen in pregnancy) due to (exogenous) progesterone. H&E stain.
Hormonal contraception
refers to birth control methods that act on the hormonal system.
DomainKeys is an e-mail authentication system designed to verify the DNS domain of an E-mail sender and the message integrity. The DomainKeys specification has adopted aspects of Identified Internet Mail to create an enhanced protocol called DomainKeys Identified Mail (DKIM). This merged specification is the basis for an IETF Working Group which plans to guide the specification towards becoming an IETF standard.
