by Conaway, Christopher H., Ross, John R.M., Looker, Richard, Mason, Robert P., Flegal, A. Russell
Published in Environmental research (01.09.2007)

by CONAWAY, Christopher H, ROSS, John R. M, LOOKER, Richard, MASON, Robert P, RUSSELL FLEGAL, A
Published in Environmental research (2007)

by LOOKER RICHARD N
Year of Publication 01.05.1956

by Looker, Richard F., Callahan, William P., Barry, Francis E.
Published in The American journal of surgery (1953)