1 These are Ingredient-Strength combinations (e.g. Acetaminophen 250 MG). For details, download the source code for building DRUG_STRENGTH.  If you only want to use this table for drug and ingredient concepts that are valid (where the field INVALID_REASON is null), the DRUG_STRENGTH records can be used as such.
DEFINITION of 'Botnet'. A network of internet-connected devices that have been compromised by hackers without the knowledge of the legitimate owners.
Botnet owners or herders are able to control the machines in their botnet by means of a covert channel such as IRC (Internet Relay Chat), issuing commands to perform malicious activities such as distributed denial-of-service (DDoS) attacks, the sending of spam mail, and information theft.