TY - RPRT TI - Low HL-A2 frequency and periodontitis. AU - P I Terasaki AU - R S Kaslick AU - T L West AU - A I Chasens PY - 1975 DO - 10.1111/j.1399-0039.1975.tb01476.x UR - https://pubmed.ncbi.nlm.nih.gov/50636/ ID - 50636 ER -