00558nam a2200181Ia 4500001000700000003000500007005001700012008004100029035002000070040001300090060001800103110005400121245011800175260002200293300001800315650002100333650002200354130815BIBL20240725062705.0711101s1970    xx a          000 0 eng d  a(OCoLC)14417202  aNLMcNLM0 aW6bP3 v.7319  aPuerto Rico.bRadiological Health Program.2Local12aA survey of x-radiation from color T. V. receivers in the metropolitan area of San Juan, Puerto Rico, July, 1970.  a[San Juan]c1970.  a43 p.billus. 2aRadiation2Local 2aTelevision2Local