melbourne australia main medical association call saturday government allow independent doctor health experts help 400 asylum seekers languish inside recently close detention center papua new guinea asylum seekers shut inside australian-run manus island centre past 18 days defy attempt australia papua new guinea png close standoff unite nations describe loom humanitarian crisis australia shut access center staff include doctor leave leave men without sufficient food clean water power medical care members australian medical association ama vote unanimously saturday call government grant access center doctor could assess men health wellbeing live condition ama make many representations matter publicly private worsen dangerous situation emerge manus federal council strongly believe urgent action answer need ama president michael gannon say responsibility nation strong human right record ensure look health wellbeing men provide safe hygienic live condition government spokesmen immediately available comment australia sovereign border immigration policy refuse allow asylum seekers arrive boat reach shore heavily criticize unite nations human right group bipartisan political support australia 421 asylum seekers manus island say fear violent reprisals community move transit center pending possible resettlement unite state sudanese refugee abdul aziz say via text message saturday png officials start dismantle center perimeter fence food run low wait drink rainwater ... tense feel idea png us attitude toward us really aggressive aziz say png supreme court rule last year center breach laws fundamental human right lead decision close new zealand offer accept 150 men australia decline offer say priority exist refugee swap deal negotiate former u.s. president barack obama last year deal 1,250 asylum seekers could send unite state australia turn accept refugees central america australian medical group want access manus island asylum seekers