Looking for Bone Marrow Surgeon in PCMC ? Bone Marrow Surgeon in Pune ? Bone Marrow Surgeon in Maharashtra ? Best Bone Marrow Surgeon in India ? Dr Kannan Subramanian is the Best Bone Marrow Surgeon in Punawale, Ravet, Nigdi, Chinchwad, Pimpri, Bhosari, Moshi, Chakan, Alandi, Charholi, Kasarawadi, Pimple Gurav, Pimple Saudagar, Rahatani, Pimple Nilakh, Wakad, Hinjewadi, Marunji, PCMC and Pune. Bone marrow is a semi-solid tissue which may be found within the spongy or cancellous portions of bones. In birds and mammals, bone marrow is the primary site of new blood cell production or hematopoiesis. It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells.