“…The most commonly used inputs in more than 80% of the core publications are hospital beds (intensive care unit beds, emergency beds, psychiatric, chronic, tuberculosis and leprosy beds [ 47 , 74 ]), physicians (specialists and non-specialists), nurses and other medical and non-medical staff (such as ancillary services personnel, pharmacists, laboratory and other technicians, administrative personnel, radiological technologists, midwives, and dietitians [ 43 , 47 ]). They are often measured in Full Time Equivalent (FTE) [ 1 , 41 , 52 , 60 , 67 ].…”