| Sales of fake trees are expected to approach 13 million this year, a record, as quality improves and they get more convenient, with features like built-in lights and easy collapsibility. |
| After extrusion, the tubes are annealed to remove the work hardening and provide the softness or limpness needed for good collapsibility. |
| He thinks it is the container's lower weight, rather than its collapsibility, that makes it attractive. |
| A mathematical model of idiopathic intracranial hypertension incorporating increased arterial inflow and variable venous outflow collapsibility. |
| Effect of weight loss on upper airway collapsibility in obstructive sleep apnea. |
| Statistical methods for analyzing collapsibility in regression models. |
