function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brandis, Dirk', 15],
    ['Dai, Aiyun & Chen, Guo-Xiao', 9],
    ['Dai, Aiyun & Türkay, Michael', 8],
    ['Freitag, Hendrik', 6],
    ['Mitra, Santanu & Pati, Sameer Kumar', 5],
    ['Naruse, Tohru & Chia, Jing En & Zhou, Xianmin', 8],
    ['Naruse, Tohru & Shokita, Shigemitsu & Ng, Peter K. L.', 8],
    ['Naruse, Tohru & Yeo, Darren C. J. & Zhou, Xianmin', 6],
    ['Naruse, Tohru & Zhu, Chunchao & Zhou, Xianmin', 5],
    ['Ng, Peter K. L.', 11],
    ['Ng, Peter K. L. & Takeda, Masatsune', 6],
    ['Ng, Peter K. L. & Tri, Ngo Van', 11],
    ['Ng, Peter K. L. & Yeo, Darren C. J.', 7],
    ['Pati, Sameer K.', 7],
    ['Shi, Boyang & Pan, Da & Sun, Hongying', 6],
    ['Other (71)', 159]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=277)',
    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);