12452140 - Grandfather giving grandson a piggy back12452158 - Father giving son a piggy back12452138 - Grandfather giving grandson a piggy back12452139 - Grandfather giving grandson a piggy back11862002 - Child carrying a baby12898759 - Japanese man with a tattooed back, 189512421601 - Mothers and babies at a baby clinic12657658 - Illustration of an office worker with a painful back12644487 - Compression fracture of a lumbar vertebra, X-ray12589368 - Illustration of a man's ureters12586787 - Illustration of a man with backache12586631 - Illustration of a cyclist's spine12504283 - Pressure sore in a elderly patient12657646 - Illustration of an office worker with a painful back12586804 - Illustration of a man with backache12098708 - A gurnard lionfish12587755 - Illustration of a man's skeletal thorax12586802 - Illustration of a man with backache12586644 - Illustration of a cyclist's spine12589360 - Illustration of a man's kidney cancer12587833 - Illustration of a man's skeletal back12587012 - Illustration of a human skeleton12586797 - Illustration of a man with backache12586783 - Illustration of a man with backache12586780 - Illustration of a man with backache12586647 - Illustration of a cyclist12589357 - Illustration of a man's colon12589139 - Illustration of a painful neck12586777 - Illustration of a man with backache12586662 - Illustration of a jogger's spine12897555 - Study of the Back View of a Skeleton, c148012657657 - Illustration of an office worker with a painful back12657653 - Illustration of an office worker with a painful back12587834 - Illustration of a man's painful back12587802 - Illustration of a man's painful spine12586779 - Illustration of a man with backache12449462 - Patient undergoing a patch test in allergy clinic12587014 - Illustration of a human skeleton12586774 - Illustration of a man with backache12449463 - Patient undergoing a patch test in allergy clinic12449461 - Patient undergoing a patch test in allergy clinic12333035 - Body art on the back of a Wodaabe man12589365 - Illustration of a man's pancreas12587011 - Illustration of a human skeleton12586645 - Illustration of a cyclist's spine12492486 - X-rays of a frog, 1890s12447558 - Examining a junctional melanocytic naevus12421610 - Young child in a village12657641 - Illustration of an office worker with a painful back12586676 - Illustration of a jogger's spine12449464 - Patient undergoing a patch test in allergy clinic12657636 - Illustration of an office worker with a painful back12657628 - Illustration of an office worker with a painful back12589363 - Illustration of a man's lung12586800 - Illustration of a man with backache12586793 - Illustration of a man with backache12586785 - Illustration of a man with backache11709167 - A Whales footprint,left after surfacing12586794 - Illustration of a man with backache12421112 - Examination using a stethoscope12065045 - Silhouette of a pregnant woman12657652 - Illustration of an office worker with a painful back12586786 - Illustration of a man with backache12586629 - Illustration of a cyclist's spine12589361 - Illustration of a man's kidneys12589074 - Illustration of a disc replacement12586792 - Illustration of a man with backache11709171 - A Whales footprint,left after surfacing12589364 - Illustration of a man's organs12657642 - Illustration of an office worker with a painful back12657635 - Illustration of an office worker with a painful back12644486 - Compression fracture of a lumbar vertebra, X-ray12589073 - Illustration of a spinal fusion12588563 - Illustration of a painful spine12586790 - Illustration of a man with backache12586775 - Illustration of a man with backache12586678 - Illustration of a jogger's skeleton12504268 - Atopic eczema on a baby's back12375800 - Zebra crab on a sea urchin12054566 - Pressure sore in a paraplegic patient11718152 - Leopard gecko on a rock12898467 - A buffalo pound, Canada, c1819-182212657639 - Illustration of an office worker with a painful back12657629 - Illustration of an office worker with a painful back12589092 - Illustration of a disc replacement12588662 - Illustration of a woman's skeleton12657645 - Illustration of an office worker with a painful back12449465 - Patient undergoing a patch test in allergy clinic12644485 - Compression fracture of a lumbar vertebra, X-ray12586801 - Illustration of a man with backache12586791 - Illustration of a man with backache12586782 - Illustration of a man with backache12586663 - Illustration of a jogger's spine12589356 - Illustration of a man's bronchi12586653 - Illustration of a tilted pelvis12586630 - Illustration of a cyclist's spine12589091 - Illustration of a spinal fusion12589072 - Illustration of a spinal fusion12586803 - Illustration of a man with backachepage suivante