function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Billet, Guillaume & Muizon, Christian De & Schellhorn, Rico', 1],
    ['Carrillo, Juan D. & Suarez, Catalina', 30],
    ['Fernández, Mercedes & Zimicz, Ana N. & Bond, Mariano', 2],
    ['Forasiepi, Analía M. & MacPhee, Ross D. E.', 3],
    ['Tejedor, Marcelo F. & Goin, Francisco J. & Gelfo, Javier N.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);