function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Constantino, Luis Miguel', 1],
    ['De, Claudio J. B. & Wolff, Marta & Wendt, Lisiane D.', 3],
    ['Evenhuis, Neal L.', 1],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 2],
    ['Hernández-Ortiz, V. & Aguirre, A.', 4],
    ['Loew, Hermann', 10],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Perez-Gelabert, Daniel E. & Thompson, F. Christian', 3],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 3],
    ['Wendt, Lisiane Dilli & Ale-Rocha, Rosaly', 38],
    ['Wendt, Lisiane Dilli & Gonçalves, Eduardo Gomes', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=67)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);