Pengaruh perawatan kulit berdasarkan skor skala braden Q terhadap kejadian luka tekan anak di pediatric intensive care unit (PICU) RS. Tugurejo dan RS. Roemani Semarang = The influence of skin care based on braden q scale to pediatric pressure ulcer incidence in pediatric intensive care unit (PICU) at RS RS. Tugurejo and RS. Roemani Semarang