The effects of nasogastric feeding at different intervals on feeding intolerance in ICU patients: a single-blind randomized controlled trial - Oshvandi, Khodayar; Dehvan, Fazel; Falahinia, Gholamhosein; Taher, Abbas; Soltanian, Ali Reza; Sadeghi-Hedayat, Samaneh (Family Medicine & Primary Care Review, 2020)