Maurits van der Graaf

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The use of methylsulfonylmethane (MSM), available as an "over-the-counter" dietary supplement, led to the occurrence of an abnormal resonance at 3.15 ppm in the in vivo brain proton MR spectrum as well as the in vitro cerebrospinal fluid NMR study of a 4-year-old girl. The concentration of this compound amounted to 1.2 mmol/l in brain tissue and 1.7 mmol/l(More)
T echnical advances in cardiovascular electrophysiology have resulted in an increasing number of catheter abla-tion procedures reaching 200 000 in Europe for the year 2013. 1 These advanced interventions are often complex and time-consuming and may cause significant radiation exposure. 2 Furthermore, a substantial number of ablation procedures remain(More)
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