ZHANG Cuiliu, ZHANG Lanfeng, ZHOU Jianping, ZHANG Jinye. Application and fabrication of an adjustable back-slap sputum excretion device[J]. Journal of Clinical Medicine in Practice, 2018, (14): 57-59. DOI: 10.7619/jcmp.201814016
Citation: ZHANG Cuiliu, ZHANG Lanfeng, ZHOU Jianping, ZHANG Jinye. Application and fabrication of an adjustable back-slap sputum excretion device[J]. Journal of Clinical Medicine in Practice, 2018, (14): 57-59. DOI: 10.7619/jcmp.201814016

Application and fabrication of an adjustable back-slap sputum excretion device

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