Comammox Nitrospira are the dominant ammonia oxidizers in the Yangtze estuarine biofilms - Xiu-feng Tang; Xing-pan Guo; Lu Kuang; Xin-jie Chen; Nazupar Sidikjan; Ting-ting Xu; Shan Jiang; Min Liu; Li-jun Hou; Yi Yang (Water Research, 2025)