Label-Free Quantification (LFQ) of Fecal Proteins for Potential Pregnancy Detection in Polar Bears. - Curry, Erin; Philpott, Megan E.; Wojtusik, Jessye; Haffey, Wendy D.; Wyder, Michael A.; Greis, Kenneth D.; Roth, Terri L. (Life (2075-1729), 2022)