1. Department of Surgery, Division of Surgical Research, Mayo Clinic, Rochester, MN 55905, USA
2. Department of Obstetrics and Gynecology, Mayo Clinic, Rochester, MN 55905, USA
3. Microbiome Program, Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
4. Astrobiology Group, Center of Astronomy and Astrophysics, Technical University, 10623 Berlin, Germany
5. German Research Centre for Geosciences (GFZ), Section Geomicrobiology, 14473 Potsdam, Germany
6. Department of Plankton and Microbial Ecology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, 16775 Stechlin, Germany
7. School of the Environment, Washington State University, Pullman, WA 99164, USA