Insurance ovulation, embryo mortality and twinning.
(1998)
Journal Article
Ball, H., & Hill, C. (1998). Insurance ovulation, embryo mortality and twinning. Journal of Biosocial Science, 31(2), 245-255
Professor Helen Ball's Outputs (5)
Parental manipulation of post-natal survival and well-being -- are parental sex preferences adaptive? (1998)
Book Chapter
Ball, H., & Hill, C. (1998). Parental manipulation of post-natal survival and well-being -- are parental sex preferences adaptive?. In T. Pollard, & S. Hyatt (Eds.), Sex, Gender and Health (143-151). Cambridge University Press
Nature, Nurture, and the determinates of Childhood Mortality: A case study from Massachusetts, 1830-1920. (1998)
Book Chapter
Swedlund, A., & Ball, H. (1998). Nature, Nurture, and the determinates of Childhood Mortality: A case study from Massachusetts, 1830-1920. In A. Goodman, & T. Leatherman (Eds.), Building a New Biocultural Synthesis: Political-Economic and Critical Perspectives on Human Biology (191-228). University of Michigan Press
What happens to infants who sleep with their parents? (1998)
Presentation / Conference Contribution
Ball, H., & Hooker, E. (1998, December). What happens to infants who sleep with their parents?. Presented at American Association of Physical Anthropology Annual Meeting, Salt Lake City, Utah
You wanna put a camera in our bedroom? Video observations of parent-infant cosleeping in the home environment. (1998)
Presentation / Conference Contribution
Ball, H., & Hooker, E. (1998, December). You wanna put a camera in our bedroom? Video observations of parent-infant cosleeping in the home environment. Presented at Measuring Behaviour 98, Groningen, NL