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Marijuana and chronic obstructive lung disease: a population-based study
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Abstract
Background: Our aim was to determine the combined and independent effects of tobacco and marijuana smoking on respiratory symptoms and chronic obstructive pulmonary disease (COPD) in the general population.
Method: We surveyed a random sample of 878 people aged 40 years or older living in Vancouver, Canada, about their respiratory history and their history of tobacco and marijuana smoking. We performed spirometric testing before and after administration of 200 µg of salbutamol. We examined the association between tobacco and marijuana smoking and COPD.
Results: The prevalence of a ...
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Trillium's H.323 Product Plans Emphasize Quality and Performance.
Business Wire
; ...BUSINESS WIRE)--Sept. 8, 1998--Trillium Digital Systems Inc., a leading provider...based networks, including the Internet. Trillium's new H.323 products will offer higher...feature and performance requirements. Trillium's extensive knowledge of communications...
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Trillium Announces A Solution for Seamless Portation of its Communications Protocol Software to Microsoft Windows NT.
Business Wire
; ...BUSINESS WIRE)--June 1, 1998--Trillium Digital Systems Inc., a leading provider...that enables the seamless portation of Trillium's protocol source code software to Microsoft Windows NT. Trillium's solution for Windows NT will enable...
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TRILLIUM DIGITAL SYSTEMS: Trillium joins Intel's In Internet Exchange Architecture* Developers Forum.
M2 Presswire
; M2 PRESSWIRE-6 September 1999-TRILLIUM DIGITAL SYSTEMS: Trillium joins Intel's Internet Exchange Architecture* Developers...INTEL DEVELOPERS FORUM, PALM SPRINGS, Calif. -- Trillium Digital Systems, Inc., the leading provider of communications...
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Trillium Expands Asia Operations with New Development Center in India; Bangalore Office to Expand R&D and Services for Trillium's Rapid Growth.
Business Wire
; ...2001 Open House Inaugurates Newest Operation in Trillium's Asia Network Trillium Digital Systems Inc., an Intel company and leading...engineering talent and university graduates will enable Trillium to accelerate and expand the research and development...
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Trillium Digital Systems Inc. Announces Plans to Develop SS7 Software Solutions for Force Computers Hardware.
Business Wire
; ...BUSINESS WIRE)--Oct. 7, 1997--Trillium Digital Systems Inc., a leading provider...and a single source for software, the Trillium-Force combination will provide a flexible...wireless and wireline infrastructures. Trillium licenses its software as source code...
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Trillium Digital Systems Inc. Announces Its ATM Product Plans and Additional MPOA and LANE 2.0 Functionality.
Business Wire
; ...BUSINESS WIRE)--Oct. 7, 1997--Trillium Digital Systems Inc., a leading provider...such as multimedia and IP multicast. Trillium, widely recognized for its ATM products...release of its enhanced PLOA product. Trillium will offer discounted licenses of its...
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Trillium Announces Availability of H.323 Voice-over-IP Protocol Software; Sets New Standards for Performance and Functionality.
Business Wire
; ...BUSINESS WIRE)--March 1, 1999--Trillium Digital Systems Inc., the leading provider...over-IP protocol software products. Trillium's H.323 software solutions enable...audio, data and video communications. Trillium's H.323 software product has a smaller...
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Trillium's IP Telephony Software Solution Wins Internet Telephony and Communications Solutions 1999 Product of the Year Awards.
Business Wire
; ...BUSINESS WIRE)--Dec. 23, 1999 Trillium's H.323 Protocol Software Enables...to-Market for Equipment Suppliers Trillium Digital Systems Inc., the leading provider...audio, video and data communications. Trillium's H.323 software solution has a smaller...
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Trillium IP Telephony Solutions Accelerate Network Convergence.
Business Wire
; ...Enhancements to Its Leading H.323 Solution Trillium Digital Systems Inc., the leading provider...generation IP and telephony products, Trillium enables communications equipment suppliers...Public Switched Telephone Network.) "Trillium is committed to providing flexible and...
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Trillium Software's New Global Technology Alliance Initiative Unites the Most Successful Companies in Customer Data Quality.
PR Newswire
; ...Partnerships Will Provide Harte-Hanks and Trillium Customers with a Comprehensive CRM...BILLERICA, Mass., May 8 /PRNewswire/ -- Trillium Software, a division of Harte-Hanks...strategies program. The announcement confirms Trillium's commitment to provide organizations...
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