TY - BOOK ED - World Health Organization. ED - WHO Symposium on the Laboratory Diagnosis of Trachoma TI - Guide to the laboratory diagnosis of trachoma SN - 9241540486 PY - 1975/// CY - Geneva PB - World Health Organization KW - Trachoma KW - diagnosis N1 - Issued in Spanish as: Publicaci'on cient'ifica / Organizaci'on Panamericana de la Salud ; no. 408 UR - http://apps.who.int/iris/ ER -