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Loss of hard chorion: An evolutionary dead-end for parental egg-care fish

Researchers from Institute of Science Tokyo present the underlying reasons behind the evolutionary bias in reproductive strategies of egg-care species. Using 240 whole genome sequences of fish species ...
insider.si.edu

Concerning the origin and development of the chorion, amnion and yolk sac--the great importance of the corona radiata cells, by Frank A. Stahl

"The present publication is the fourth of a series of five researches concerning the histology and physiology of the early ovum; 2 to 7-8th week."--p. [2] siris_sil_243108 ...
Seeking Alpha

BioStem Technologies Completes Enrollment in Clinical Trial Evaluating BioREtain® Amnion Chorion for Treatment of Diabetic Foot Ulcers

POMPANO BEACH, Fla., June 23, 2025 (GLOBE NEWSWIRE) -- BioStem Technologies, Inc. (“BioStem” or the “Company”) (OTC: BSEM), a leading MedTech company focused on the development, manufacturing, and ...
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BioStem Technologies Completes Enrollment in Clinical Trial Evaluating BioREtain® Amnion Chorion for Treatment of Diabetic Foot Ulcers

Head-to-head study comparing BioREtain®- processed Amnion Chorion (BR-AC) allograft to standard of care initiated in Q4 2024 to demonstrate healing superiority Topline results and full data analysis ...