function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Evenhuis, Neal L.', 2],
    ['Evenhuis, Neal L. & Kettani, Kawtar', 5],
    ['Lamas, Carlos J. E. & Falaschi, Rafaela L. & Evenhuis, Neal L.', 2],
    ['Mendes, Luanna L. & Evenhuis, Neal L.', 1],
    ['Mendes, Luanna L. & Lamas, Carlos J. E. & Evenhuis, Neal L.', 1],
    ['Myskowiak, Justine & Garrouste, Romain & Nel, Andre', 2],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Rafael, J. A. & Limeira-De-Oliveira, F.', 1],
    ['Ramos-Pastrana, Yardany & Córdoba-Suarez, Eric', 3],
    ['Ramos-Pastrana, Yardany & Rojas-Portilla, Edilberto', 5],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 1],
    ['Sinclair, Bradley J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);