Ambulatory care utilization patterns of children and young adults : national ambulatory medical care survey, United States, January-December 1975 / [Trena M. Ezzati].

SeriesVital and health statistics Series 13 ; no. 39
no. (OS) 76-503
Vital and health statistics. Series 13 ; no. 39. UNAUTHORIZED
no. (OS) 76-503. UNAUTHORIZED
LCCN 78606086
ISBN0840601344