90

П. Гуйон и др., статья Births, Fertility, Rhythms, and Lunar Cycle: A Statistical Study of 5,927,928 Births в Journal of Gynecology, Obstetrics, and Biological Reproduction (Paris) 15, № 3 (1986): 265–71. http://www.ncbi.nlm.nih.gov/pubmed/3734339