function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Felix, Rob P. W. H. & Massa, Bruno', 31],
    ['Holuša, Jaroslav & Kočárek, Petr & Vlk, Robert & Marhoul, Pavel', 11],
    ['Kim, Tae-Woo & Puskás, Gellért', 32],
    ['Mao, Ben-Yong & Ren, Guo-Dong & Ou, Xiao-Hong', 13],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 69],
    ['Otte, Daniel', 12],
    ['Pocco, Martina E. & Cigliano, María Marta', 16],
    ['Storozhenko, Sergey Yu.', 18],
    ['Storozhenko, Sergey Yu. & Kim, Taewoo', 36],
    ['Tan, Ming Kai & Kamaruddin, Khairul Nizam', 14],
    ['Tlili, Haithem & Abdellaoui, Khemais', 57],
    ['Tshililo, Precious', 39],
    ['Usmani, Mohammad Kamil', 63],
    ['Usmani, Mohd. Kamil & Nayeem, Md. Rashid', 25],
    ['Şirin, Deniz & Mol, Abbas & Taylan, Mehmet Saýt & Demýr, Eyüp', 23],
    ['Other (72)', 230]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=689)',
    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);