National Center for Biotechnology Information NCBI NLM MEDLINE clinical trials as topic humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't u.s. gov't female male Infant P.H.S. Clinical Trial Randomized Controlled Trial Antibodies Double-Blind Method Random Allocation time factors bronchiolitis viral / immunology aerosols viral / drug therapy* respiratory syncytial viruses / immunology ribavirin / administration & dosage* nose / microbiology respirovirus infections / complications* pmid:6356005 l h taber v knight w r schlaudt ribonucleosides / administration & dosage*