function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ackland, D. M.', 25],
    ['De Carvalho, C. J. B. & Pont, A. C. & Couri, M. S.', 1],
    ['El-Hawagry, Magdi S. & Abdel-Dayem, Mahmoud S.', 4],
    ['Fernandes, Juliana Morgado & Couri, Márcia Souto', 1],
    ['Gomes, Lucas R. P. & Couri, Márcia S.', 2],
    ['Gomes, Roberto Pereira & Fogaça, João Manuel', 7],
    ['Grisales, Diana & Lopes, André César', 2],
    ['Meigen, Johann Wilhelm', 1],
    ['Panzer, Georg Wolfgang Franz', 1],
    ['Pont, Adrian C.', 31],
    ['Schlüsslmayr, Gerhard', 2],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 8],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Wiedemann, C. R. W.', 5],
    ['ZHANG, XUFENG & ZHU, WEIBING', 3],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=96)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);