Source:
Scientific American [Sci Am] 2002 Jul; Vol. 287 (1), pp. 25-6.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium:
Source:
Scientific American [Sci Am] 1978 Nov; Vol. 239 (5), pp. 154-64.Publisher: Scientific American Country of Publication: United States NLM ID: 0404400 Publication Model: Print Cited Medium: