function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cedro, Victor R. & Hajdu, Eduardo & Correia, Monica D.', 1],
    ['Cruz-Barraza, José Antonio & Vega, Cristina', 3],
    ['Grenier, Marie & Ruiz, Cesar & Lage, Anaira & Perez, Thierry', 2],
    ['Lage, Anaíra & Araujo, Hannah Paola Mota', 2],
    ['Lage, Anaíra & Muricy, Guilherme & Ruiz, César & Pérez, Thierry', 2],
    ['Lehnert, Helmut & Stone, Robert & Heimler, Wolfgang', 2],
    ['Schulze, F. E.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);