Is it possible to obtain information about associated ADRs or GDRs, given a particular security?  For example, given ABI.BR  (ANHEUSER BUSCH INBEV NV),  if I navigate to "Price & Charts", click on "All Quotes", under the DR section, I can see the related ADRs such as BUD.A, BUD.B, etc.    Is it possible to obtain the same information programatically via the APIs?