Abstract A pedigree containing all the relevant clinical, laboratory, and molecular data is fundamental to the evaluation of genetic risks.
Pedigrees have to be drawn for reports, papers, textbooks, and slides or overheads for lectures.
As the drawing of complex pedigrees is a time consuming process we developed PED 4 as a tool for fast and standardized drawing of pedigrees. The new member will be properly positioned and connected. Positions of existing pedigree members as well as their connecting lines will be adjusted automatically. No special order of input is necessary. Thus, within a few minutes a pedigree with dozens of members can be drawn.