Assertion: prolate spheroid | /r/HasProperty | keller et al.
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Source sentences:
text: To determine cardiac volumes (end diastolic volume and end systolic volume), embryonic and larval crayfish hearts were modeled as a prolate spheroid (cardiac volume = 4/3 [pi]a[b.sup.2]), where a and b are half of the measured long and short axes of the heart, respectively (Keller et al., 1991, 1994; Taber et al., 1992; Schwerte and Pelster, 2000; and Harper and Reiber, 2001).