ORGAN: Observation-Guided Radiology Report Generation via Tree Reasoning Wenjun Hou author Kaishuai Xu author Yi Cheng author Wenjie Li author Jiang Liu author 2023-07 text Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Anna Rogers editor Jordan Boyd-Graber editor Naoaki Okazaki editor Association for Computational Linguistics Toronto, Canada conference publication hou-etal-2023-organ 10.18653/v1/2023.acl-long.451 https://aclanthology.org/2023.acl-long.451/ 2023-07 8108 8122