English: DuBose TJ, http://www.obgyn.net/us/us.asp?page=/us/cotm/0001/ehr2000
DuBose TJ, Cunyus JA, & Johnson L; Embryonic Heart Rate and Age. J Diagn Med Sonography 1990; 6:151-157. Schats R, Jansen CAM, & Waldimiroff JW; "Embryonic heart activity: appearance and development in early human pregnancy"; Brit J Obstet and Gynaecol, 1990; 97:989-994. Qasim SM, Sachdev R, Trias A, et al; The predictive value of first trimester embryonic heart rates in fertility patients. Obstetrics & Gynecology. 89(6):934-6, 1997 June; DuBose TJ; FETAL SONOGRAPHY, Chapter 12 Heart Rate; W. B. Saunders Co. 1996; p. 274-263.
This work has been released into the public domain by its author, DuBose at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: DuBose grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.Public domainPublic domainfalsefalse
This graph image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.
It is recommended to name the SVG file “EHR-BBII.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
This graph image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}.
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2009-11-30 20:13 DuBose 1500×1125× (311738 bytes) ~~~~DuBose, Terry J; this is data gathered by me and my associates, and graphed by me. I own the image. <ref>DuBose TJ, Cunyus JA, & Johnson L; Embryonic Heart Rate and Age. J Diagn Med Sonography 1990; 6:151-157. </ref> <ref>DuBose TJ, Miller MM, Mout