TY - GENERIC DO - 10.20944/preprints202011.0177.v1 UR - http://dx.doi.org/10.20944/preprints202011.0177.v1 TI - Phytochemical Constituents Propolis Flavonoid, Immunological Enhancement, Anti-porcine Parvovirus Activities of isolated from the Propolis T2 - Preprints AU - Ma, Xia AU - guo, zhenhuan AU - zhang, zhiqiang AU - li, xianghui AU - lv, yizhou AU - shen, zhiqiang AU - Zhao, Li AU - Liu, Yonglu PY - 2020 DA - 2020/11/04 PB - Preprints