Wave Staff Report WILLOWBROOK — The Jeffrey Smith Sickle Cell Clinic at the Martin Luther King Jr. Outpatient Clinic celebrated its 10th anniversary of providing patient care Sept. 28. The clinic serves California’s largest sickle cell population, with more than 2,500 adults and children living with sickle cell disease, an inherited blood disorder that affects red blood cells’ ability to carry oxygen. While anyone can inherit the sickle cell tra…