function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barabanov, Andrei V. & Doronin, Igor V.', 1],
    ['Fatihah-Syafiq, Muhamad & Badli-Sham, Baizul Hafsyam', 1],
    ['Figueroa, Alex & Low, Martyn E. Y. & Lim, Kelvin K. P.', 1],
    ['Ineich, Ivan', 1],
    ['Karin, Benjamin R. & Stubbs, Alexander L. & Arifin, Umilaela', 3],
    ['Kraus, Fred', 7],
    ['Kraus, Fred & Oliver, Paul M.', 1],
    ['Kraus, Fred & Vahtera, Varpu & Weijola, Valter', 1],
    ['Ota, Hidetoshi & Hikida, Tsutomu', 1],
    ['Stubbs, Alexander L. & Karin, Benjamin R. & Arifin, Umilaela', 1],
    ['Wang, Hao-Tian & Qi, Shuo & Qiu, Xian-Chun & Li, Pi-Peng', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=19)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);