PPP3CA and osteomyelitis: BEM attachment represents a major step in osteomyelitis onset as 10–60% of studied S. aureus clones express cna, bbp, and fnbB genes and 100% express fnbA or clumping factor A and B genes (Otsuka et al., 2006; Campoccia et al., 2009; Atshan et al., 2012; Post et al., 2014).