TY - RPRT TI - Further studies with a complement fixation test for trachoma. AU - R L WOOLRIDGE AU - J T GRAYSTON PY - 1962 DO - 10.1111/j.1749-6632.1962.tb30554.x UR - https://pubmed.ncbi.nlm.nih.gov/14008304/ ID - 14008304 ER -