@article{paperid:1066201, author = {Yousefi, Khadijeh and Mojtaba Zebarjad and Vahdati Khaki, Jalil}, title = {Comparison of polyethylene glycol effect on hydroxyapatite morphology produced into different methods: sol–gel and precipitation}, journal = {Journal of Sol-Gel Science and Technology}, year = {2015}, volume = {76}, number = {3}, month = {December}, issn = {0928-0707}, pages = {592--598}, numpages = {6}, keywords = {Sol–gel Precipitation Hydroxyapatite PEG Morphology}, }