What is the difference between Gonal-F, Follistim, Pergonal, and Repronex?

Gonal-F and Follistim are follitropins, preparations of highly purified follicle stimulating hormone, or FSH. Both Gonal-F and Follistim are human FSH preparations of recombinant DNA origin. They stimulate ovarian follicular growth.

FSH is required for normal follicular growth, meiosis, and gonadal steroid production. Pergonal and Repronex are purified preparations of gonadotropins extracted from the urine of post-menopausal women. More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.