The authors wish to thank Hannah Strum for her help in compiling the data from studies conducted in NEPTUNE and Lalita Subramanian for her expert assistance in the preparation of the manuscript.

Members of the Nephrotic Syndrome Study Network (NEPTUNE)

NEPTUNE collaborating sites

Atrium Health Levine Children’s Hospital, Charlotte, SC: Susan Massengill*, Layla Lo#

Cleveland Clinic, Cleveland, OH: Katherine Dell*, John O’Toole*, John Sedor**, Blair Martin#

Children’s Hospital, Los Angeles, CA: Ian Macumber*, Silpa Sharma#

Children’s Mercy Hospital, Kansas City, MO: Tarak Srivastava*, Kelsey Markus#

Cohen Children’s Hospital, New Hyde Park, NY: Christine Sethna*, Suzanne Vento#

Columbia University, New York, NY: Pietro Canetta*

Duke University Medical Center, Durham, NC: Opeyemi Olabisi*, Rasheed Gbadegesin**, Maurice Smith#

Emory University, Atlanta, GA: Laurence Greenbaum*, Chia-shi Wang*, Emily Yun#

The Lundquist Institute, Torrance, CA: Sharon Adler*, Janine LaPage#

John H Stroger Cook County Hospital, Chicago, IL: Amatur Amarah*, Mathew Itteera#

Johns Hopkins Medicine, Baltimore, MD: Meredith Atkinson*, Miahje Williams#

Mayo Clinic, Rochester, MN: John Lieske, Marie Hogan, Fernando Fervenza.

Medical University of South Carolina, Charleston, SC: David Selewski*, Cheryl Alston#

Montefiore Medical Center, Bronx, NY: Kim Reidy*, Michael Ross*, Frederick Kaskel**, Patricia Flynn#

New York University Medical Center, New York, NY: Laura Malaga-Dieguez*, Olga Zhdanova**, Laura Jane Pehrson#, Melanie Miranda#

The Ohio State University College of Medicine, Columbus, OH: Salem Almaani*, Laci Roberts#

Stanford University, Stanford, CA: Richard Lafayette*, Shiktij Dave#

Temple University, Philadelphia, PA: Iris Lee**

Texas Children’s Hospital at Baylor College of Medicine, Houston, TX: Shweta Shah*, Sadaf Batla# #

University Health Network Toronto: Heather Reich*, Michelle Hladunewich**, Paul Ling#, Martin Romano#

University of California at San Francisco, San Francisco, CA: Paul Brakeman*

University of Colorado Anschutz Medical Campus, Aurora, CO: James Dylewski* Nathan Rogers#

University of Kansas Medical Center, Kansas City, KS: Ellen McCarthy*, Catherine Creed#

University of Miami, Miami, FL: Alessia Fornoni*, Miguel Bandes#

University of Michigan, Ann Arbor, MI: Matthias Kretzler*, Laura Mariani*, Zubin Modi*, A Williams#, Roxy Ni#

University of Minnesota, Minneapolis, MN: Patrick Nachman*, Michelle Rheault*, Amy Kowalski#, Nicolas Rauwolf#

University of North Carolina, Chapel Hill, NC: Vimal Derebail*, Keisha Gibson*, Anne Froment#, Sara Kelley#

University of Pennsylvania, Philadelphia, PA: Lawrence Holzman*, Kevin Meyers**, Krishna Kallem#, Aliya Edwards#

University of Texas San Antonio, San Antonio, TX: Samin Sharma**

University of Texas Southwestern, Dallas, TX: Elizabeth Roehm*, Kamalanathan Sambandam**, Elizabeth Brown**, Jamie Hellewege.

University of Washington, Seattle, WA: Ashley Jefferson*, Sangeeta Hingorani**, Katherine Tuttle**§, Linda Manahan#, Emily Pao#, Kelli Kuykendall§

Wake Forest University Baptist Health, Winston-Salem, NC: Jen Jar Lin**

Washington University in St. Louis, St. Louis, MO: Vikas Dharnidharka*

Data analysis and coordinating center

University of Michigan: Matthias Kretzler*, Brenda Gillespie**, Laura Mariani**, Zubin Modi**, Eloise Salmon**, Howard Trachtman**, Tina Mainieri, Gabrielle Alter, Michael Arbit, Hailey Desmond, Sean Eddy, Damian Fermin, Wenjun Ju, Maria Larkina, Chrysta Lienczewski, Rebecca Scherr, Jonathan Troost, Amanda Williams, Yan Zhai; Arbor Collaborative for Health: Colleen Kincaid, Shengqian Li, Shannon Li; Cleveland Clinic: Crystal Gadegbeku**; Duke University: Laura Barisoni**, John Sedor**; Harvard University: Matthew G Sampson**; Northwestern University: Abigail Smith**; University of Pennsylvania: Lawrence Holzman**, Jarcy Zee**

Digital pathology committee

Carmen Avila-Casado (University Health Network), Serena Bagnasco (Johns Hopkins University), Lihong Bu (Mayo Clinic), Shelley Caltharp (Emory University), Clarissa Cassol (Arkana), Dawit Demeke (University of Michigan), Brenda Gillespie (University of Michigan), Jared Hassler (Temple University), Leal Herlitz (Cleveland Clinic), Stephen Hewitt (National Cancer Institute), Jeff Hodgin (University of Michigan), Danni Holanda (Arkana), Neeraja Kambham (Stanford University), Kevin Lemley, Laura Mariani (University of Michigan), Nidia Messias (Washington University), Alexei Mikhailov (Wake Forest), Vanessa Moreno (University of North Carolina), Behzad Najafian (University of Washington), Matthew Palmer (University of Pennsylvania), Avi Rosenberg (Johns Hopkins University), Virginie Royal (University of Montreal), Miroslav Sekulik (Columbia University), Barry Stokes (Columbia University), David Thomas (Duke University), Ming Wu (University of New York), Michifumi Yamashita (Cedar Sinai), Hong Yin (Emory University), Jarcy Zee (University of Pennsylvania), Yiqin Zuo (University of Miami). Co-Chairs: Laura Barisoni (Duke University), Cynthia Nast (Cedar Sinai).*Principal Investigator; **Co-investigator; #Study Coordinator; §Providence Medical Research Center, Spokane, WA