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PELICAN: a quality of life instrument for childhood asthma: Study Protocol of two Randomized Controlled Trials in Primary and Specialized Care in the Netherlands
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Implementation of the external cephalic version in breech delivery. Dutch national implementation study of external cephalic version
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Improving the implementation of tailored expectant management in subfertile couples: Protocol for a cluster randomized trial
Avoidability of hospital deaths and association with hospital-wide mortality ratios: retrospective case record review and regression analysis