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A histamine H2-receptor agonist, 4-methylhistamine, triggers the pluripotent stem cells of mouse bone marrow from a noncycling state into the DNA synthetic phase of the cell cycle. The histamine H2-receptor blocking agent cimetidine antagonized the action of 4-methylhistamine. The antagonism was reversed by increasing 4-methylhistamine concentrations. When(More)
A technique using direct trocar insertion for laparoscopy was introduced into the Tripler Army Medical Center Obstetrics and Gynecology training program in September 1982. From January 1, 1983 to December 31, 1985, a total of 1249 laparoscopic procedures were performed. Detailed records of 937 laparoscopic procedures performed using this technique were(More)
Two hundred and fifty-two women scheduled to undergo laparoscopy were randomly assigned to a Verres needle or direct insertion group. The groups were similar with respect to incidence of obesity, prior surgical treatment, indication for operation and level of training of the surgeon performing the procedure. There were no major complications associated with(More)