  In this paper we focus on three major task: 1) discussing our methods: Our
method captures a portion of the data in DCD flowsheets, kidney perfusion data,
and Flowsheet data captured peri-organ recovery surgery. 2) demonstrating the
result: We built a comprehensive, analyzable database from 2022 OPTN data. This
dataset is by far larger than any previously available even in this preliminary
phase; and 3) proving that our methods can be extended to all the past OPTN
data and future data.
  The scope of our study is all Organ Procurement and Transplantation Network
(OPTN) data of the USA organ donors since 2008. The data was not analyzable in
a large scale in the past because it was captured in PDF documents known as
``Attachments'', whereby every donor's information was recorded into dozens of
PDF documents in heterogeneous formats. To make the data analyzable, one needs
to convert the content inside these PDFs to an analyzable data format, such as
a standard SQL database. In this paper we will focus on 2022 OPTN data, which
consists of $\approx 400,000$ PDF documents spanning millions of pages. The
entire OPTN data covers 15 years (2008--20022). This paper assumes that readers
are familiar with the content of the OPTN data.
