I selected a few salient quotes from Francis Collins‘ book on evolutionary development and faith, The Language of God, which I would recommend reading alongside the resources already suggested by Ayala, Venema, and Falk (though Falk is better). Collins is a Christian and was the leader of the legendary Human Genome Project. His book is an apologetic for both evolutionary development and the Christian faith.
On supposed micro/macro evolutionary distinctions:
The distinction between macroevolution and microevolution is therefore seen to be rather arbitrary; larger changes that result in new species are a result of a succession of smaller incremental steps.
On the connection between evolutionary theory and medicine:
Truly it can be said that not only biology but medicine would be impossible to understand without the theory of evolution.