function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 3],
    ['Ando, Yusuke & Kawano, Shigenori & Muramiya, Yusuke', 1],
    ['Castro, Peter', 87],
    ['Charbonnier, Sylvain & Garassino, Alessandro & Pasini, Giovanni', 4],
    ['Clark, Paul F. & Ng, Peter K. L.', 3],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 2],
    ['Froglia, Carlo & Clark, Paul F.', 2],
    ['Garassino, Alessandro & Pasini, Giovanni & Castro, Peter', 2],
    ['Guinot, Danièle & Castro, Peter', 3],
    ['Martin, Joel W. & Haney, Todd A.', 3],
    ['Muñoz, Isabel & García-Isarch, Eva & Cuesta, Jose A.', 3],
    ['Ng, Peter K. L. & Castro, Peter', 9],
    ['Ng, Peter K. L. & Clark, Paul F.', 5],
    ['Ng, Peter K. L. & Komai, Tomoyuki', 2],
    ['Rahayu, Dwi Listyo & Ng, Peter K. L.', 4],
    ['Other (7)', 7]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=140)',
    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);