1 The results of prophylactic measures for femoral head AVN have considerable variation, but certain generalizations can safely be stated. 2  Namely, the clinical results of core decompression alone deteriorate with more advanced lesions.
1 Melasma is very common skin ailment. It can occur to anyone, but young women with brownish tone are more likely to contract with it.  The condition is often linked with female hormonal changes. Change in level of estrogen and progesterone may cause melasma.
Melatonin is a hormone produced in the brain by the pineal gland. Production is triggered by darkness and stopped by light. A 1978 paper published in the Lancet predicted melatonin's role in breast cancer.