Over hundred doctors of the Goa Indian Medical Association (IMA) staged a protest march wearing black bands to express solidarity with doctors on strike against attack on a medical practitioner in West Bengal.Speaking to reporters, Goa IMA President Anil Mehndiratta said a strong legislation was needed to prevent attacks on doctors by patients' kin and friends."Doctors, associated with non-essential medical services, participated in the march. We have submitted a memorandum to Chief Minister Pramod Sawant and Speaker of the Assembly Rajesh Patnekar seeking a strict law to deal with the violence against doctors and also condemn attack on our colleague in a Kolkata hospital," Mehndiratta told reporters.The doctors walked from the Azad maidan to the Old Goa Medical College complex, here.Earlier on June 14, doctors of the government-run Goa Medical College and a private hospital protested after a junior doctor at the NRS Hospital in Kolkata was allegedly beaten up by a patient's kin on June 10.