function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dupuis, Fabien', 1],
    ['Ferreira, André Da Silva & Araújo, Maíra Xavier', 1],
    ['Freese, Edwin L. & Veal, Doug A. & Lago, Paul K.', 1],
    ['Gasca-Álvarez, Héctor Jaime & Deloya, Cuauhtémoc', 2],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 22],
    ['Moore, Matthew R. & Jameson, Mary L. & Garner, Beulah H.', 229],
    ['Moore, Matthew Robert & Jameson, Mary Liz', 2],
    ['Paucar-Cabrera, Aura', 9],
    ['Rodrigues, Sérgio Roberto & Morón, Miguel Angel', 2],
    ['Taboada-Verona, Carlos & Sermeño-Correa, Carlos', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=270)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);