In this task, you are given a passage which has a question and the context. You have to generate an answer to the question based on the information present in the context.

Ex Input:
Context: Contralateral groin exploration in children with unilateral inguinal hernia is still controversial, particularly in infants. The patency rate of processus vaginalis is highest in infants but there are few data on the subsequent risk of contralateral hernia development in infants. In this retrospective study, we aimed to find out the incidence of contralateral inguinal hernia following unilateral inguinal herniotomy in infants aged less than one year.', 'All infants who underwent a unilateral Inguinal herniotomy between January 1990 and December 1998 were studied retrospectively. Infants with bilateral hernia (n = 7) were excluded from the study.', 'One hundred and one infants (93 boys and 8 girls) were studied. Median age at operation was 23 (range 2-52) weeks. The herniotomy was right-sided in 75% of the infants. Follow-up ranged from three and a half years to 11 years. A contralateral hernia developed in nine infants (9.0%). One of the initial hernias was incarcerated. Median time from operation to occurrence of contralateral hernia was 18 (range 2-60) months. None of the contralateral hernia was incarcerated. Age, sex, incarceration and side of initial hernia did not influence the development of contralateral hernia.\Question: Is contralateral groin exploration justified in infants with a unilateral inguinal hernia?

Ex Output:
The low incidence and benign nature of contralateral hernia development in infants undergoing a unilateral inguinal herniotomy does not justify routine contralateral groin exploration.

Ex Input:
Context: In developmental research, infants are commonly assumed to be early stakeholders in interactions with their caregivers. The tools that infants can use to interact with others vary from visual contact to smiling or vocalizing, and also include motor activity. However, surprisingly few studies have explored how the nature and context of social interactions affect infants' engagement in motor activity.", "We investigated the kinematic properties of foot and face movements produced by 11 infants aged between 5 and 9 months during six contrasting dyadic episodes (i.e. passive presence of a stranger or the infant's mother, weak or intense interaction with the stranger/mother as she sings a nursery play song).", "The infants' face and foot motor activity was significantly reduced during the interactive episodes, compared with the episodes without any interaction, in both the mother and stranger conditions. Furthermore, the level of their motor activity was significantly lower in the stranger condition than in the mother one for some parameters.\Question: Is social interaction associated with changes in infants ' motor activity?

Ex Output:
These results are in line with those reported by previous studies and confirm the relevance of using motor activity to delineate the early forms of interactive episodes in infants.

Ex Input:
Context: Neural crest stem cells derived from the boundary cap (bNCSCs), markedly promote survival, proliferation and function of insulin producing -cells in vitro and in vivo after coculture/transplantation with pancreatic islets [ 1, 2 ]. Recently, we have shown that beneficial effects on -cells require cadherin contacts between bNCSCs and -cells [ 3, 4 ]. Here we investigated whether hair follicle (HF) NCSCs, a potential source for human allogeneic transplantation, exert similar positive effects on -cells.', 'We established cocultures of HF-NCSCs or bNCSCs from mice expressing enhanced green fluorescent protein together with pancreatic islets from DxRed expressing mice or NMRI mice and compared their migration towards islet cells and effect on proliferation of -cells as well as intracellular relations between NCSCs and islets using qRT-PCR analysis and immunohistochemistry.', 'Whereas both types of NCSCs migrated extensively in the presence of islets, only bNCSCs demonstrated directed migration toward islets, induced -cell proliferation and increased the presence of cadherin at the junctions between bNCSCs and -cells. Even in direct contact between -cells and HF-NCSCs, no cadherin expression was detected.\Question: Do neural crest stem cells from hair follicles and boundary cap have different effects on pancreatic islets in vitro?

Ex Output:
These observations indicate that HF-NCSCs do not confer the same positive effect on -cells as demonstrated for bNCSCs. Furthermore, these data suggest that induction of cadherin expression by HF-NCSCs may be useful for their ability to support -cells in coculture and after transplantation.