Mayo Clinic offers award-winning medical and health information and tools for healthy living.

The eMedicine point-of-care clinical reference features up-to-date, searchable, peer-reviewed medical articles organized in specialty-focused textbooks, and is continuously updated with practice-changing evidence culled daily from the medical literature.

Accurate information, written by a doctor, about skin conditions and good skin care. Learn about various skin conditions like acne, herpes, psoriasis, skin cancer, and hair loss. Find out about skin care and looking younger based on good research, not hype.

Homepage of Merck.com, Merck's corporate Web site

Pregnant and itching? Find info. here about intrahepatic cholestasis of pregnancy, also referred to as Obstretric Cholestasis. Pregnancy itch.

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world's largest medical library. It collects materials in all major areas of the health sciences and to a lesser degree in such areas as chemistry, physics, botany and zoology. The collections stand at 5 million items--books, journals, technical reports, manuscripts, microfilms, photographs and images. Housed within the Library is one of the world's finest medical history collections of old (pre-1914) and rare medical texts, manuscripts, and incunabula.

Homepage of Merck.com, Merck's corporate Web site

American Pregnancy Association is a national nonprofit for the promotion of pregnancy wellness and education.