Published records of conferences, including abstracts, reports, and the papers presented. For ephemeral materials such as flyers, program books, daily newsletters, or newspapers that are distributed at conferences see Conference materials.
Published records of conferences, including abstracts, reports, and the papers presented. For ephemeral materials such as flyers, program books, daily newsletters, or newspapers that are distributed at conferences see Conference materials.
Here are entered works on techniques for planning or preventing pregnancies by observation of the naturally occurring signs and symptoms of the fertile and infertile phases of the menstrual cycle.