/sys$common/syshlp/helplib.hlb FORTRAN, Statements, GOTO, Assigned  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Transfers control to a statement label that is represented by a
  variable.  An ASSIGN statement must establish a relationship
  between the variable and the specified statement label.  Statement
  format:

     GO TO v[[,](slist)]

     v      Is an integer variable whose value was set by a
            preceding ASSIGN statement in the same program unit.
            (In Compaq Fortran, v must be INTEGER*4.)

     slist  Is a list of one or more labels of executable
            statements separated by commas.