Background: Strategies for the surgical management of necrotising enterocolit is are various and controversial. Objective: To characterise variation in surgic a
The alloying effect of the refractory elements Ta and W on the electronic structure of y-TA is investigated by using the first-principles discrete variational m
Aim: To investigate the association between different types of headache and leisure activities in 13-y-old schoolchildren. Methods: A population-based, cross-se