Entity: Forensic Medicine

Source Advanced Player's Guide pg. 58 ^2.0

You've learned that in most cases, especially murders, criminals tend to leave more evidence of the crime on the body than they'd like to believe. Information from bruising, bone fractures, blood spatters, and even the life cycle of carrion insects can provide valuable clues that help reconstruct the scene.

You're trained in Medicine and gain the Forensic Acumen and Battle Medicine skill feats. When you use Battle Medicine, on a success the target recovers additional Hit Points equal to your level, and the target becomes temporarily immune for only 1 hour, not 1 day.