TY - RPRT TI - Tree swallows as indicators of per- and polyfluoroalkyl substance exposure and effects at select Department of Defense sites along the East Coast and at sites with different sources in the Upper Midwest, United States AU - Christine M. Custer AU - Paul M. Dummer AU - Sandra L. Schultz AU - Natalie Karouna-Renier AU - Cole W. Matson PY - 2025 DO - 10.1093/etojnl/vgaf207 UR - https://pubs.usgs.gov/publication/70272199 ID - 70272199 ER -