The ultrasound effect on the morphological properties of hydroxyapatiteKonstantin Chuprunov, Eugenii Kolesnikov, Igor Ilinykh, Andrey Yudin, Denis Leybo and Gopalu KarunakaranMATEC Web Conf., 243 (2018) 00012DOI: https://doi.org/10.1051/matecconf/201824300012