The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.

A strong oxidizing agent.

Drugs that mimic the effects of parasympathetic nervous system activity. Included here are drugs that directly stimulate muscarinic receptors and drugs that potentiate cholinergic activity, usually by slowing the breakdown of acetylcholine (CHOLINESTERASE INHIBITORS). Drugs that stimulate both sympathetic and parasympathetic postganglionic neurons (GANGLIONIC STIMULANTS) are not included here.

Persons functioning as natural, adoptive, or substitute parents. The heading includes the concept of parenthood as well as preparation for becoming a parent.

A serotonin uptake inhibitor that is effective in the treatment of depression.

Devices which accelerate electrically charged atomic or subatomic particles, such as electrons, protons or ions, to high velocities so they have high kinetic energy.

Deliberate severe and repeated injury to one domestic partner by the other.

Age of the father.

Refusal of the health professional to initiate or continue treatment of a patient or group of patients. The refusal can be based on any reason. The concept is differentiated from PATIENT REFUSAL OF TREATMENT see TREATMENT REFUSAL which originates with the patient and not the health professional.

The process of accepting patients. The concept includes patients accepted for medical and nursing care in a hospital or other health care institution.