00526nam a2200145Ia 450000100070000000500170000707400140002408600160003824500670005426000950012150000540021661000460027065000210031685600430033729961720160527183633.0  a0506-A-160 aHE 20.3037:00aTelephone and service directorycNational Institutes of Health  aBethesda, Md.bThe InstitutesaWashington, D.C.bFor sale by the Supt. of Docs, U.S. G.P.O  aDescription based on: Mar. 1981; title from cover00aNational Institutes of Health U.S.2Local00aTelephone2Local7 uhttp://purl.access.gpo.gov/GPO/LPS6936