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By: Samuel Philbrick | Published: Jun 20, 2011

Robert Geoffrey Edwards worked with Patrick Christopher Steptoe to develop in-vitro fertilization (IVF) techniques during the 1960s and 1970s in the…

By: Benjamin Garcia, Katherine Brind'Amour | Published: Nov 01, 2007

Wilhelm August Oscar Hertwig contributed to embryology through his studies of cells in development and his discovery that only one spermatozoon is…