"Magnetic resonance angiography of intracranial and extracranial arteries in patients with spontaneous migraine without aura: a cross-sectional study" 
Lancet April 9
http://www.lancet.com/journals/laneur/article/PIIS1474-4422(13)70067-X/fulltext

"Orlistat and the risk of acute liver injury: self controlled case series study in UK Clinical Practice Research Datalink"
BMJ April 12
http://www.bmj.com/content/346/bmj.f1936