function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 2],
    ['Giglioli, E. H. & Issel, A.', 1],
    ['Gilbert, Charles H. & Cramer, F.', 1],
    ['Gilbert, Charles H. & Hubbs, Carl L.', 4],
    ['Golani, Daniel', 1],
    ['Goren, Menachem & Galil, Bella S.', 1],
    ['Jordan, David Starr & Starks, E. C.', 3],
    ['Kamohara, T.', 1],
    ['Mcmillan, Peter & Iwamoto, Tomio', 5],
    ['Melo, Marcelo R. S. & Braga, Adriana C. & Nunan, Gustavo W. A.', 2],
    ['Nakayama, Naohide', 7],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 1],
    ['Radcliffe, L.', 2],
    ['Schwarzhans, Werner', 27],
    ['Other (4)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=63)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);