A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL. The file type is application/pdf.
application/pdf
Siwaporn Ubolcholket. "Frequency of Thoraco-Omphalopagus Conjoined Twins." Acta geneticae medicae et gemellologiae 23.S2 (1974) 16