function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezzi, Mario', 1],
    ['Fachin, Diego Aguilar & Assis-Pujol, Cristiane Vieira De', 1],
    ['Fachin, Diego Aguilar & Hauser, Martin', 1],
    ['Fachin, Diego Aguilar & Zichinelli, Marcela Maria Parada', 1],
    ['Lessard, Bryan D. & Yeates, David K. & Woodley, Norman E.', 2],
    ['Loew, Hermann', 1],
    ['Mason, Franco & Rozkošný, Rudolf & Hauser, Martin', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=8)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);