function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Coscaron, María Del Carmen & Magnanelli, Marco Andres', 1],
    ['Coscarón, María Del Carmen & Dellapé, Pablo Matías', 2],
    ['Hartung, Viktor', 4],
    ['Kment, Petr & Baňař, Petr & Bílý, Svatopluk', 1],
    ['María C. Melo & Gimena Dellapé & Leonela Olivera', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    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);