Ultrastructural studies on cleavage stage t12-t12 mouse embryos.
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Biomedical subjects
Publications and source records attributed to R Hillman.
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Presumptive chick neuroectoderm responds to RNA from brain and heart by forming neural tubes, but it does not respond to liver RNA. This dif ferential response can be correlated with the presence of Folin-positive material in those RNA preparations which elicit the formation of neural structures.
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The records of 28 male victims of sexual assault were analysed retrospectively. The mean age at time of assault was 21.7 years and the mean number of assailants was 2.8. Sixteen victims (57%) reported skin or mucosal damage and 25 (89%) sustained penetrative anal intercourse. The threat of transmission of HIV was used by the assailant in 16 cases and sexually transmitted diseases, presumed consequent upon the attack, were found in 5 (18%). These observations suggest that male victims of sexual assault may be at particular risk of sexually transmitted infections, including HIV, and that efforts should be made to encourage them to come forward for help.