function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Akyazi, Rana & Soysal, Mete & Altunç, Yunus Emre', 1],
    ['Júniordeandrade, Daniel & Da. Ueckermann & André, Henri M.', 2],
    ['Silva, Guilherme Liberato Da', 1],
    ['Silva, Guilherme Liberato Da & Cunha, Uemerson Silva Da', 3],
    ['Silva, Guilherme Liberato Da & Metzelthin, Maicon Henrique', 2],
    ['Silva, Guilherme Liberato Da & Rocha, Matheus Dos Santos', 1],
    ['Thor, Sig', 1],
    ['Ueckermann, Edward A. & Grout, Timothy G.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);