Various studies in India (34, 65, 81) report financial constraint and non-availability of human resources as the factors that delay the decision to seek delivery care, but these factors could not be captured in our study.
In general, Dr. Gordon said, "We've got an epidemic of the non availability of acute care beds and the epidemic is becoming a pandemic".
The limited availability of human biological specimens presents a challenge to the study of human immunobiology.
The third binding constraint is related to complementary factors, particularly to poor availability of human capital.
However, the availability of human liver tissue for laboratory investigation remains limited.
We also examined the relationship between the gonotrophic cycle and the availability of human blood meals.
Difficulties associated with the availability of human brain tissue, coupled with the time and cost associated with using animals for this kind of research have led to the development of non-human cell culture models.
The derivation and use of human ES cells are limited by the restricted availability of human embryos, low efficiency of isolation of human ES cells, the potential for immune rejection of non-matched tissue (West et al., 2010), and by ethical concerns surrounding the destruction of human embryos for the purpose of cell isolation.
As such, the structure and availability of human resources also influence the choice of the model.
Other frequently cited reasons for referral were non-availability of drugs (61%%) and shortage of human resources (62 %).
Significantly associated factors were residence in China, younger age, unemployment, self-pay for care, presence of comorbidities, smoking, changing treatment facilities in the previous 12 months, missing a scheduled appointment, sites not adhering to treatment guidelines, non-availability of contraceptive agents, and the availability of routine human papillomavirus (HPV) screening.
