![A genetic CLOCK variant associated with cluster headache causing increased mRNA levels]()
A genetic CLOCK variant associated with cluster headache causing increased mRNA levelsFourier, Carmen; Ran, Caroline; Zinnegger, Margret; Johansson, Anne-Sofie; Sjöstrand, Christina; Waldenlind, Elisabet; Steinberg, Anna; Belin, Andrea Carmine · Cephalalgia · 2017