function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Castro, Peter', 1],
    ['Manuel-Santos, Marivene & Ng, Peter K. L. & Freitag, Hendrik', 3],
    ['Manuel-Santos, Marivene R. & Yeo, Darren C. J.', 1],
    ['Naruse, Tohru & Jaafar, Zeehan', 1],
    ['Naruse, Tohru & Ng, Peter K. L.', 3],
    ['Ng, Paul Y. C. & Ng, Peter K. L.', 2],
    ['Ng, Peter K. L.', 11],
    ['Ng, Peter K. L. & Grinang, Jongkar', 1],
    ['Ng, Peter K. L. & Lemaitre, Rafael', 2],
    ['Ng, Peter K. L. & Ng, Paul Y. C.', 1],
    ['Ng, Peter K. L. & Schubart, Christoph D. & Lukhaup, Christian', 4],
    ['Ng, Peter K. L. & Takeda, Masatsune', 1],
    ['Ng, Peter K. L. & Wowor, Daisy', 12],
    ['Schubart, Christoph D. & Ng, Peter K. L.', 2],
    ['Shy, Jhy-Yun & Ng, Peter K. L.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    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);