PETCH-DB: a Portal for Exploring Tissue-specific and Complex disease-associated 5-Hydroxymethylcytosines. - Qinyun Cai; Zhou Zhang 002; Xiaolong Cui; Chang Zeng; Jiabin Cai; Jiajun Cai; Kai Wu; Xu Zhang; Yixiang Shi; Zoe Arvanitakis; Marc A Bissonnette; Brian C.-H. Chiu; et al. (Database J. Biol. Databases Curation, 2023)