Results 221 to 230 of about 676,703 (296)

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, EarlyView.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

Friendship Social Support Networks of African Americans. [PDF]

open access: yesSociol Focus
Taylor RJ   +5 more
europepmc   +1 more source

African Americans with a family history of cardiovascular disease show lower endothelial-dependent vasodilation. [PDF]

open access: yesPhysiol Rep
Thayer JF   +6 more
europepmc   +1 more source

The health for hearts united dissemination Trial: Implementation costs to reduce cardiovascular risk in African Americans. [PDF]

open access: yesPublic Health Pract (Oxf)
Mills JC   +5 more
europepmc   +1 more source

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