Chemical structure of human growth hormone (hGH, Somatotropin) molecule. HGH is a natural hormone that is used both as a drug and as a doping agent. Clip Artby ibreakstock2/155
Human growth hormone (hGH, Somatotropin) molecule. Natural hormone that is used both as a drug and as a doping agent. Clipartby molekuul1/110
Human head hair growth cycle. Biological catagen, telogen phases. Hair infographics. Clipartby lembergvector4/84
Erythropoietin (EPO, epoetin) protein hormone. Stimulates production of red blood cells. Used as drug and in sports doping. Stock Illustrationby molekuul2/297
Chemical structure of human placental lactogen (HPL, human chorionic somatomammotropin, HCS). This placental hormone is similar to human growth hormone (HGH). Stock Illustrationby molekuul0/93
Granulocyte colony-stimulating factor (GCSF, filgrastim) molecule. Used to treat neutropenia. Cartoon & wire representation. Secondary structure coloring. Stock Illustrationby molekuul1/99