TY - GEN AU - Bolton,J AU - Cartmill,A AU - Coakley,K AU - Saleu,G AU - Smith,T TI - The use of sand-timers in the measurement of respiratory and pulse rates in children SN - 0031-1480 PY - 1991///0726 KW - Child KW - Community Health Workers KW - methods KW - Heart Rate KW - Humans KW - Papua New Guinea KW - Respiration KW - Time KW - Weights and Measures N1 - Publication Type: Letter ER -