"Health care" . "Ergogenic aids" . "Phosphate esters" . "Neurotransmitters" . "Exercise physiology" . "Health care occupations" . "Purinergic signalling" . "Purines" . "Infraspecific virus taxa" . "Types of health care facilities" . "Adenosine receptor agonists" . "Health care industry" . "Coenzymes" . "Cellular respiration" . "Chiroptera-borne diseases" . "Sarbecovirus" . "COVID-19" . "Zoonoses" . "Nucleotides" .