function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Heppner, John B. & Landry, Bernard', 1],
    ['Komal, J. & Shashank, P. R. & Sondhi, Sanjay & Madan, Sohail', 1],
    ['Metz, Mark A. & Hallwachs, Winnie & Janzen, Daniel H.', 1],
    ['Meyrick, E.', 1],
    ['Meyrick, Edward', 1],
    ['Philpott, Alfred', 1],
    ['Terada, Takeshi', 13],
    ['Terada, Takeshi & Sakamaki, Yositaka & Ohno, Suguru', 1],
    ['Vargas, Héctor A.', 2],
    ['Wang, Ailing & Guan, Wei & Wang, Shuxia', 14],
    ['Wang, Ailing & Wang, Shuxia & Guan, Wei', 14],
    ['Wang, Shuxia & Guan, Wei & Wang, Ailing', 23]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=73)',
    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);