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. 2008 Jun 5;89(3):654–664. doi: 10.1644/06-MAMM-A-436R1.1

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© 2008 American Society of Mammalogists

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 4 — Weekly mean (± SD) serum progesterone (ng/ml) levels from 8 pregnant (n = 245) and 8 nonpregnant in = 482) coyotes during the breeding seasons in 2000–2002, aligned to the estimated day of ovulation (day 0). No intergroup statistical difference was detected. Missing columns are weeks for which there were insufficient data available.