function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T.', 20],
    ['Ahyong, Shane T. & Brown, Diane E.', 15],
    ['Ahyong, Shane T. & Ng, Peter K. L.', 19],
    ['Becker, C. & Türkay, M.', 5],
    ['Campos, Ernesto', 18],
    ['Campos, Ernesto & Vargas-Castillo, Rita', 3],
    ['Coelho, Petrônio Alves & Almeida, Alexandre Oliveira De', 14],
    ['Komai, Tomoyuki & Kawai, Kei & Ng, Peter K. L.', 3],
    ['Mantelatto, Fernando L. & Tamburus, Ana Francisca', 11],
    ['Ng, Peter K. L.', 4],
    ['Ng, Peter K. L. & Ahyong, Shane T.', 13],
    ['Ng, Peter K. L. & Ahyong, Shane T. & Campos, Ernesto', 6],
    ['Ng, Peter K. L. & Ho, Ping-Ho', 4],
    ['Theil, Emma Palacios & Felder, Darryl L.', 11],
    ['Wicksten, Mary K.', 23],
    ['Other (38)', 59]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=228)',
    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);