HPA

• Health Care Practice Act;

• Health Policy Agenda for the American People;

• health promotion advocates;

• Helix pomatia agglutinin;

• hemagglutinating penicillin antibody;

• Histoplasma capsulatum polysaccharide antigen;

• human platelet alloantigen;

• human platelet antigen;

• humeroscapular periarthritis;

• hybridization protection assay;

• hypertrophic pulmonary arthropathy;

• hypophyseal-adrenal axis;

• hypothalamo-pituitary-adrenocortical [system];

• hypothalamopituitary axis