TY - BOOK ED - World Health Organization. TI - Health education in the control of schistosomiasis SN - 9241544074 AV - RA 644 .S3W67 1990 U1 - 614.5/53 20 PY - 1990/// CY - Geneva PB - World Health Organization KW - Schistosomiasis KW - Prevention KW - Health education ER -