TY - GEN AU - Scher,A AU - Ratson,M TI - Motor development and sleep problems among 9-month-olds SN - 0031-5125 PY - 1999///0311 KW - Child Development KW - physiology KW - Humans KW - Infant KW - Infant Behavior KW - Motor Skills KW - Sleep KW - Sleep Wake Disorders KW - physiopathology N1 - Publication Type: Journal Article UR - https://doi.org/10.2466/pms.1998.87.3f.1218 ER -