Straits Times
National Briefing | Science and Health Viagra Trial Is Halted
New York Times
By REUTERS The National Institutes of Health has stopped a trial of Viagra that was intended to see whether the drug could be used to treat pulmonary
NIH stops trial of drug for sickle cell patientsLos Angeles Times
NIH Stops Study Of Revatio In Sickle Cell PatientsCNNMoney.com
NIH stops study in sickle cell patientsThe Associated Press
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