function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Burr, Malcolm', 4],
    ['Girod, Christophe & Matzke, Danilo', 29],
    ['Heleodoro, Raphael Aquino', 1],
    ['Heleodoro, Raphael Aquino & Alves-Oliveira, João Rafael', 4],
    ['Hincks, W. D.', 1],
    ['Iorio, Osvaldo Di & Turienzo, Paola', 1],
    ['Kamimura, Yoshitaka & Ferreira, Rodrigo L.', 1],
    ['Karthik, C. M. & Kalleshwaraswamy, C. M.', 5],
    ['Kočárek, Petr', 2],
    ['Meurgey, François & Ramage, Thibault', 1],
    ['Miles, Claire', 100],
    ['Popham, Edward J.', 1],
    ['Sakenin, H. & Samin, N. & Imani, S. & Rastegari, J.', 2],
    ['Steinmann, Henrik', 2],
    ['Temreshev, Izbasar I. & Makezhanov, Arman M.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=155)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);