TY - BOOK AU - Langfeldt,T. AU - Porter,M. ED - WHO Study Group on Rheumatic Fever and Rheumatic Heart Disease TI - Sexuality and family planning: report of a consultation and research findings SN - 9289010428 PY - 1986/// CY - Copenhagen PB - World Health Organization KW - Sex behaviour KW - Sex education N1 - Summaries in French, German and Russian ER -