1. McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
2. Lipotype GmbH, Dresden, Germany.
3. Rice University, Houston, TX 77005, USA.
4. School of Biomedical Informatics, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
5. Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
6. Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.