What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
FREE et al. v. ABBOTT LABORATORIES, INC., et al.
No. 99-391.
Argued March 27, 2000
Decided April 3, 2000
Daniel A. Small argued the cause for petitioners. With him on the briefs were Michael D. Hausfeld, Matthew F Pawa, Eric L. Olson, Daniel E. Gustafson, Howard J. Sedran, and Don Barrett.
Frank Cicero, Jr., argued the cause for respondents. With him on the brief were Craig A. Knot, Christopher Landau, and Max R. Shulman
Jane Bishop Johnson filed a brief for the State of Louisiana as amicus curiae urging reversal.
Briefs of amici curiae urging affirmance were filed for the Chamber of Commerce of the United States et al. by Evan M. Tager, Robin S. Conrad, and Donald D. Evans; for the Product Liability Advisory Council by John H. Beisner; and for the Securities Industry Association by Stuart J. Kaswell.
Per Curiam.
The judgment is affirmed by an equally divided Court.
Justice O’Connor took no part in the consideration or decision of this case.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 1