The collections of the National Library of Medicine include more than seven million books, journals, technical reports, manuscripts, microfilms, photographs, and images on medicine and related sciences, including some of the world's oldest and rarest works.
The collections of the National Library of Medicine include more than seven million books on medicine. The collections of the National Library of Medicine include more than seven million books on related sciences. This is including some of the world's oldest. This is including some of rarest works. More than seven million books are journals. More than seven million books are technical reports. More than seven million books are manuscripts. More than seven million books are microfilms. More than seven million books are photographs. More than seven million books are images.