function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barbosa, Felipe Francisco', 11],
    ['Blackburn, T. & Sharp, David', 4],
    ['Kovalev, Alexey V.', 5],
    ['Majka, Christopher G.', 9],
    ['Meng, Ziye & Chen, Xiaoqin & Sun, Yuna & Ruan, Yongying', 40],
    ['Mitter, Heinz', 4],
    ['Muona, Jyrki', 4],
    ['Muona, Jyrki & Teräväinen, Marianna', 14],
    ['Oberprieler, Rolf G. & Ashman, Lauren G. & Frese, Michael', 5],
    ['Otto, Robert L.', 196],
    ['Otto, Robert L. & Karns, Ken D.', 45],
    ['Otto, Robert L. & Muona, Jyrki & Córdoba-Alfaro, Jim', 27],
    ['Seung, Jinbae & Lee, Seunghwan', 5],
    ['Vahtera, Varpu & Muona, Jyrki & Linna, Ari', 84],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 10],
    ['Other (29)', 57]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=520)',
    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);