The absence of an invasive air sac system in the earliest dinosaurs suggests multiple origins of vertebral pneumaticity | Scientific Reports
The IAA- and ABA-responsive transcription factor CgMYB58 upregulates lignin biosynthesis and triggers juice sac granulation in pummelo | Horticulture Research
Case 48 with the dural injury of the thecal sac. (A) Preoperative... | Download Scientific Diagram
Check out the bombers of the Cold War at the Strategic Air Command Museum - CNET
12-nation Heavy Airlift Wing takes flight with first C-17 > Air Mobility Command > Article Display