Physiological changes in plasma proteins characteristic of human reproduction; cross-sectional and longitudinal electrophoretic data for women during and following uncomplicated and complicated pregnancies,

Includes bibliographies.

National Education Longitudinal Study of 1988 : first follow-up : student component data file user's manual /

"May 1992."

Individuals and families in transition : understanding change through longitudinal data : papers presented at the Social Science Research Council conference in Annapolis, Maryland, March 16-18, 1988 /

Mode of access: Internet.

A Mortality study of 1.3 million persons by demographic, social and economic factors : 1979-1985 follow-up : U.S. National Longitudinal Mortality Study /

Chiefly tables.

An analysis of guardrail and median barrier accidents using the Longitudinal Barrier Special Studies (LBSS) file. Volume I: final report.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.

An analysis of guardrail and median barrier accidents using the Longitudinal Barrier Special Studies (LBSS) file. Volume II: users guide.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.