digraph {
rankdir=LR;
charset="utf-8";
LITERAL [shape=record];
labelloc="t";
label="genereviews <=> genereviews"
node[shape=plaintext];
subgraph cluster_key{rank=max;label="Color Legend";
dflt [label=< Typical Case >];
gain [label=< New Edge >];
drop [label=< Lost Edge >];
less [label=< Diminished Count >];
dflt -> dflt [color="black"];
gain -> gain [color="blue"];
drop -> drop [color="orange"];
less -> less [color="pink"];
}
PMID -> IAO [label=, penwidth = "4.58182", weight = "252", color="orange"];
PMID -> GeneReviews [label=, penwidth = "5", weight = "275", color="orange"];
}