BELGRADE, Mont., April 19, 2016 (GLOBE NEWSWIRE) — Xtant Medical Holdings, Inc. (NYSE MKT:XTNT), a leader in the development of regenerative medicine products and medical devices, pre-announced that its first quarter 2016 revenue is expected to be in the range of $20.9 million to $21.1 million, which compares to pro forma combined revenue of $21.7 million […]