function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cao, Cheng-Quan & Shi, Jian-Ping & Yin, Zhan', 2],
    ['Chand, D. Suresh & Das, Swapan Kumar & Kumar, Hirdesh', 1],
    ['Gankhuyag, Enkhtsetseg & Dorjsuren, Altanchimeg & Choi, Eun Hwa', 11],
    ['Ghahari, H. & Havaskary, M. & Tabari, M. & Ostovan, H.', 5],
    ['Gupta, Sunil Kumar & Chandra, Kailash & Husemann, Martin', 2],
    ['Hollier, John', 16],
    ['Husemann, Martin & Ray, Jesse & Hochkirch, Axel', 3],
    ['Kim, Tae-Woo & Puskás, Gellért', 1],
    ['MACHÁýKOVÁ, Lenka & FIKÁýEK, Martin', 1],
    ['Massa, Bruno', 1],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 2],
    ['Storozhenko, S. Yu. & Benediktov, A. A.', 3],
    ['Tlili, Haithem & Abdellaoui, Khemais', 9],
    ['Usmani, Mohammad Kamil', 9],
    ['Yong, Sheyla & Perez-Gelabert, Daniel E.', 2],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    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);