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Studies in Spermatogenesis (1905), by Nettie Maria Stevens

Studies in Spermatogenesis is a two volume book written by Nettie Maria Stevens, and published by the Carnegie Institution of Washington in 1905 and…

Loop Electrosurgical Excision Procedure (LEEP)

Ontogeny and Phylogeny (1977), by Stephen Jay Gould

Ontogeny and Phylogeny is a book published in 1977, in which the author Stephen J. Gould, who worked in the US, tells a history of the theory of…

Merck & Company's Development of Gardasil

In 2006, the United States branch of Merck & Co. received FDA approval for Gardasil, a human papillomavirus, or HPV, vaccine that protects…

“Is Neisseria gonorrhoeae Initiating a Future Era of Untreatable Gonorrhea?: Detailed Characterization of the First Strain with High-Level Resistance to Ceftriaxone” (2011), by Makoto Ohnishi, Daniel Golparian, Ken Shimuta, Takeshi Saika, et al.

In July 2011, Makoto Ohnishi and colleagues published the article “Is Neisseria gonorrhoeae Initiating a Future Era of Untreatable Gonorrhea?:…

Metoidioplasty

Metoidioplasty is a type of gender-affirming surgery that creates a small-sized neophallus, or new penis, from an enlarged clitoris. Gender-…

Gertrude Belle Elion (1918–1999)

Gertrude Belle Elion was a twentieth-century scientist in the US who researched the structure of viral DNA to help develop anti-viral medications.…

Temperature-Dependent Sex Determination in Reptiles

The sex of a reptile embryo partly results from the production of sex hormones during development, and one process to produce those hormones depends…

Carl Gottfried Hartman (1879-1968)

Carl Gottfried Hartman researched the reproductive physiology of opossums and rhesus monkeys. He was the first to extensively study the embryology…

Frazer v. Schlegel (2007)

On 20 August 2007, in Frazer v. Schlegel, the United States Court of Appeals for the Federal Circuit decided that researchers Ian Frazer and Jian…