function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borths, Matthew & Seiffert, Erik R.', 1],
    ['Gingerich, Philip D. & Deutsch, Harvey A.', 8],
    ['Peigné, Stéphane & Morlo, Michael & Chaimanee, Yaowalak', 1],
    ['Solé, Floréal & Marandat, Bernard & Lihoreau, Fabrice', 4],
    ['Therrien, François', 1],
    ['Vianey-Liaud, Monique & Comte, Bernard & Marandat, Bernard', 2],
    ['Wang, Xiaoming & Qiu, Zhanxiang & Wang, Banyue', 2],
    ['Werdelin, Lars', 2],
    ['Zack, Shawn P.', 2],
    ['Zack, Shawn P. & Poust, Ashley W. & Wagner, Hugh', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);