TY - BOOK ED - WHO Symposium on the Laboratory Diagnosis of Trachoma, ED - Institute of Ophthalmology (London, England) ED - World Health Organization. TI - Guide to the laboratory diagnosis of trachoma SN - 9241540486 PY - 1975/// CY - Geneva PB - World Health Organization KW - Trachoma KW - diagnosis N1 - Sponsored jointly by the World Health Organization and the Institute of Ophthalmology, University of London ER -