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阐述Cronkhite-Canada综合征（CCS）患者的内镜下特点及其与临床特点的相关性。回顾性纳入1999年1月至2019年6月于北京协和医院住院使用糖皮质激素治疗前接受胃镜及结肠镜检查的CCS患者24例。采集其人口学特点、临床表现、初始内镜下特点及组织病理学资料并分析。
New study finds U.S. and Canada have lost more than 1 in 4 birds in past 50 years（图）
U.S. Canada lost birds past 50 years
2019/10/18
Since 1970, bird populations in the U.S. and Canada have declined by 29%, or almost 3 billion birds, signaling a widespread ecological crisis, a study published in the journal Science reveals. The res...
Adequacy of nutritional intake from food and supplements in a cohort of pregnant women in Québec, Canada: the 3D Cohort Study (Design, Develop, Discover)
pregnancy cohort nutrient intakes diet supplements Dietary Reference Intakes (DRIs)
2018/11/15
Background: Assessments of the dietary intakes in various populations suggest that pregnant women have difficulty meeting all their nutritional requirements through diet alone. Few large-scale studies...
The purpose and mission of Ortho-Bionomy Association of Canadais to Promote and uphold the principles, philosophy and practice of Ortho-Bionomy,Establish and regulate educational standards for Instruc...