Statin denialism is a rejection of the medical worth of statins. Cardiologist Steven Nissen at Cleveland Clinic has commented "We are losing the battle for the hearts and minds of our patients to Web sites..."[66] promoting unproven medical therapies. Harriet Hall sees a spectrum of "statin denialism" ranging from pseudoscientific claims to the understatement of benefits and overstatement of side effects, all of which is contrary to the scientific evidence.[67]