APA

National Institutes of Health (U.S.), . (19). Promising osteoporosis treatment found ineffective. [Washington, D.C: .

Chicago

National Institutes of Health (U.S.), . 19. Promising osteoporosis treatment found ineffective. [Washington, D.C: .

Harvard

National Institutes of Health (U.S.), . (19). Promising osteoporosis treatment found ineffective. [Washington, D.C: .

MLA

National Institutes of Health (U.S.), . Promising osteoporosis treatment found ineffective. [Washington, D.C: . 19.