This was a good comment thread on which brands or markets had what with regard to hydroxyapatite: https://news.ycombinator.com/item?id=36564190 https://news.yc

This was a good comment thread on which brands or markets had what with regard to hydroxyapatite: https://news.ycombinator.com/item?id=36564190 https://news.ycombinator.com/item?id=36564190