Inaba, Hisashi Calculationg Ro for HIV infection via pair formation / Hisashi Inaba - Tokyo : Institute of Population Problems (IPP) , 1994 - 27p. : ill. ; 30 cm. - IPP Working Paper Series No. 19 . Includes bibliographical references. Subjects--Topical Terms: AIDSModels Gov. Doc. Class. No.: JP MHW IPP WP-19